Chamberlain Garage Door Opener 1240R 1 4HP User Manual

The Chamberlain Group, Inc.

845 Larch Avenue

Elmhurst, Illinois 60126-1196

www.liftmaster.com

GARAGE DOOR OPENER

Model Series 1200

For Residential Use Only

Model 1256R - 1/2HP

Model 1246R - 1/3HP

Model 1255R - 1/2HP

Model 1245R - 1/3HP

Model 1240R - 1/4HP

Owner’s Manual

■ Please read this manual and the enclosed safety materials carefully!

■ Fasten the manual near the garage door after installation.

■ The door WILL NOT CLOSE unless the Protector System^®is connected and

properly aligned.

■ Periodic checks of the opener are required to ensure safe operation.

■ The model number label is located on the front panel of your opener.

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Preparing your garage door

WARNING

Before you begin:

To prevent possible SERIOUS INJURY OR DEATH:

• Disable locks.

• ALWAYS call a trained door systems technician if

garage door binds, sticks, or is out of balance. An

unbalanced garage door may not reverse when

required.

• NEVER try to loosen, move or adjust garage door, door

springs, cables, pulleys, brackets or their hardware, all

of which are under EXTREME tension.

• Disable ALL locks and remove ALL ropes connected to

garage door BEFORE installing and operating garage

door opener to avoid entanglement.

• Remove any ropes connected to garage door.

• Complete the following test to make sure your

garage door is balanced and is not sticking or

binding:

1. Lift the door about halfway as shown. Release

the door. If balanced, it should stay in place,

supported entirely by its springs.

2. Raise and lower the door to see if there is any

binding or sticking.

If your door binds, sticks, or is out of balance, call a

trained door systems technician.

CAUTION

To prevent damage to garage door and opener:

• ALWAYS disable locks BEFORE installing and operating

the opener.

• ONLY operate garage door opener at 120V, 60 Hz to

avoid malfunction and damage.

Sectional Door

Tools needed

One-Piece Door

During assembly, installation and adjustment of the

opener, instructions will call for hand tools as

illustrated below.

Pencil

Carpenter's

Level (Optional)

Hack Saw

Tape Measure

Wire Cutters

Drill

Claw Hammer

3/16", 5/16" and

5/32" Drill Bits

Pliers

1/2" and 7/16" Sockets

and Wrench

Stepladder

Screwdriver

Adjustable End Wrench

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• Do you have an access door in addition to the

garage door? If not, Model 1702 Outside Quick

Release is required. See Accessories page.

Planning

Identify the type and height of your garage door.

Survey your garage area to see if any of the

conditions below apply to your installation. Additional

materials may be required. You may find it helpful to

refer back to this page and the accompanying

illustrations as you proceed with the installation of

your opener.

• Look at the garage door where it meets the floor.

Any gap between the floor and the bottom of the

door must not exceed 1/4" (6 mm). Otherwise, the

safety reversal system may not work properly. See

Adjustment Step 3. Floor or door should be

repaired.

Depending on your requirements, there are several

installation steps which may call for materials or

hardware not included in the carton.

SECTIONAL DOOR INSTALLATIONS

• Installation Step 1 – Look at the wall or ceiling

above the garage door. The header bracket must

be securely fastened to structural supports.

• Do you have a steel, aluminum, fiberglass or glass

panel door? If so, horizontal and vertical reinforce-

ment is required (Installation Step 11).

• Installation Step 5 – Do you have a finished ceiling

in your garage? If so, a support bracket and

additional fastening hardware may be required.

• The opener should be installed above the center of

the door. If there is a torsion spring or center

bearing plate in the way of the header bracket, it

may be installed within 4 feet (1.22 m) to the left or

right of the door center. See Installation Steps 1

and 11.

• Installation Step 10 – Depending upon garage

construction, extension brackets or wood blocks

may be needed to install sensors.

• Installation Step 10 – Alternate floor mounting of

the safety reversing sensor will require hardware

not provided.

• If your door is more than 7 feet (2.13 m) high, see

rail extension kits listed on Accessories page.

SECTIONAL DOOR INSTALLATION

FINISHED CEILING

Support bracket &

fastening hardware

is required.

Horizontal and vertical reinforcement

See page 17.

Slack in chain tension

is needed for lightweight garage doors

(fiberglass, steel, aluminum, door with

glass panels, etc.). See page 24 for details.

is normal when

garage door is closed

Motor unit

Header Wall

Extension

Spring

Torsion

Spring

Wall-

mounted

Door

Control

Access

Door

Vertical

Centerline of

Garage Door

CLOSED POSITION

Header

Bracket

Chain Pulley

Bracket

Trolley

Garage

Door

Spring

Straight

Door

Arm

Emergency

Release

Rope & Handle

Safety

Reversing

Sensor

Gap between floor

and bottom of door must

not exceed 1/4" (6 mm)

Curved

Safety Reversing Sensor

Door

Arm

Header

Wall

Door Bracket

Garage

Door

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Planning (Continued)

WARNING

Without a properly working safety reversal system,

persons (particularly small children) could be

SERIOUSLY INJURED or KILLED by a closing garage

door.

• The gap between the bottom of the garage door and

the floor MUST NOT exceed 1/4" (6 mm). Otherwise,

the safety reversal system may not work properly.

ONE-PIECE DOOR INSTALLATIONS

• Generally, a one-piece door does not require

reinforcement. If your door is lightweight, refer to

the information relating to sectional doors in

Installation Step 11.

• Depending on your door’s construction, you may

need additional mounting hardware for the door

bracket (Step 11).

• The floor or the garage door MUST be repaired to

eliminate the gap.

ONE-PIECE DOOR WITHOUT TRACK

FINISHED CEILING

Support bracket

& fastening

hardware is required.

See page 17.

Slack in chain tension

is normal when

garage door is closed.

Header

Wall

Motor Unit

Wall-mounted

Door Control

Access

Door

CLOSED POSITION

Chain

Pulley Bracket

Trolley

Header

Bracket

Rail

Door

Bracket

Emergency

Release

Rope

Safety Reversing

Sensor

Straight

Door

Arm

Gap between floor

and bottom of door must

not exceed 1/4" (6 mm)

Curved

Door

Arm

& Handle

Safety Reversing

Sensor

Header

Wall

Garage

Door

ONE-PIECE DOOR WITH TRACK

CLOSED POSITION

Chain

Pulley Bracket

Trolley

Chain

Header

Wall

Access

Door

Curved

Door Arm

Header

Bracket

Rail

Door

Bracket

Straight

Door

Arm

Garage

Door

Emergency Release

Rope & Handle

Safety

Reversing

Sensor

Gap between floor and

bottom of door must not

exceed 1/4" (6 mm)

Safety

Reversing

Sensor

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Carton Inventory

Your garage door opener is packaged in two cartons

which contain the motor unit and all parts illustrated

below. Note that accessories will depend on the

model purchased. If anything is missing, carefully

check the packing material. Parts may be stuck in

the foam. Hardware for assembly and installation is

shown on the next page. Save the carton and

packing material until installation and adjustment is

complete.

All Models except

1256R & 1246R

SECURITY✚^®

Styrofoam

Sprocket Cover

Single-Button Remote Control (1)

Lighted Door Control Button

w/6ABx1-1/2" screws

Chain

Remote Control

Transmitter Visor Clip

Models 1256R, 1255R,

1246R, & 1245R

Models 1256R & 1246R only

2-Conductor Bell Wire

White & White/Red

One-Piece

Rail

Light Lens (1)

Chain Spreader with

Screws and Washers

Trolley

Chain

Pulley Bracket

Header Bracket

Curved Door Arm Section

Straight Door

Arm Section

Door Bracket

(2) Safety Reversing Sensors

Safety Sensor

Bracket (2)

(1 Sending Eye and 1 Receiving Eye)

with 2-Conductor White & White/Black

Bell Wire attached

Safety Labels

and

Literature

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Hardware Inventory

Separate all hardware and group as shown below for the assembly and installation procedures.

INSTALLATION HARDWARE

Hex Bolt

5/16"-18x7/8" (4)

Lag Screw

5/16"-9 x1-5/8" (2)

Lock Washer 5/16" (4)

Rail Grease

NOTICE

Handle

Lag Screw

5/16"-18x1-7/8" (2)

Nut 5/16"-18 (4)

Ring Fastener (3)

Rope

Carriage Bolts

1/4"-20x1/2" (2)

Self-Threading Screw

1/4"-14x5/8" (2)

Dry Wall

Anchors (2)

Staples (30)

Wing Nut

1/4"-20 (2)

Clevis Pin

5/16"x2-3/4" (1)

Clevis Pin

5/16"x1" (1)

Clevis Pin

5/16"x1-1/4" (1)

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CAUTION

To avoid SERIOUS damage to garage door opener,

use ONLY those bolts/fasteners mounted in the top of

the opener.

ASSEMBLY STEP 1

Fasten the Rail to the Motor Unit

MODELS 1255R 1245R, and 1240R

(For Models 1256R and 1246R see page 9)

• Remove the two washered bolts mounted in top of

motor unit.

Washered Bolt

5/16"-18x1/2"

USE ONLY THIS

TYPE AND SIZE

BOLT

• Position rail at an angle to opener so one hole in

rail and motor unit line up.

Styrofoam

Rail

Hole

• Thread one of the washered bolts part way in.

Use only these bolts! Use of any other bolts will

cause serious damage to door opener.

• Align rail and styrofoam over sprocket. Cut tape

from rail, chain and styrofoam.

• REMOVE STYROFOAM.

ASSEMBLY STEP 2

Attach the Chain to the Sprocket

and Install the Sprocket Cover

Washered Bolt

5/16"-18x1/2"

Motor Unit

Sprocket

USE ONLY THIS

TYPE AND SIZE

BOLT

MODELS 1255R 1245R, and 1240R

• Position chain over the sprocket. If necessary,

loosen the outer nut on the trolley to obtain more

chain slack.

• Insert the second washered bolt. CAUTION: Use

only the bolt previously removed from motor

unit!

• Tighten both screws securely through the rail into

the motor unit as shown.

Sprocket Cover

Back Tab Slot

• Install the sprocket cover: Insert the back tab in the

slot. Squeeze the cover slightly and insert the front

tab in the slot on the mounting plate.

Proceed to Assembly Step 3.

Front Tab Slot

Mounting

Plate

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CAUTION

To avoid SERIOUS damage to garage door opener,

use ONLY those bolts/fasteners mounted in the top of

the opener.

ASSEMBLY STEP 1

Fasten the Rail to the Motor Unit

MODELS 1256R and 1246R ONLY

• Remove the two washered bolts mounted in top of

motor unit.

Styrofoam

Packaging

• Align rail and styrofoam over sprocket.

Chain

Rail

• Cut tape from rail, chain and styrofoam. Remove

styrofoam and pull the chain back (away from the

mounting plate).

USE ONLY THIS

TYPE AND SIZE

BOLT

Washered

Bolts

5/16"-18x1/2"

• Fasten the rail with the two washered bolts

previously removed. Tighten securely.

Use only these bolts! Use of any other bolts will

cause serious damage to door opener.

Motor

Unit

Sprocket

Washered Bolts

5/16"-18x1/2"

Mounting

Plate

USE ONLY THIS

TYPE AND SIZE

BOLT

Styrofoam

Packaging

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ASSEMBLY STEP 2

Attach the Chain Spreader

and Re-install the Chain

WARNING

To avoid possible SERIOUS INJURY to fingers from

moving garage door opener:

• ALWAYS keep hand clear of sprocket while operating

opener.

MODELS 1256R AND 1246R ONLY

• Securely attach sprocket cover BEFORE operating.

• Line up the holes in the chain spreader with the

holes in the motor unit as shown. The slot in the

chain spreader must fit over the Rail flange

(Figure 1).

#8x1"

Hex Screw

Washers

• Securely fasten the chain spreader with the

hardware provided.

USE ONLY

Chain

THIS TYPE

Spreader

• Remove the trolley threaded shaft from the trolley

by loosening the inner nut and lock washer

(Figure 2).

AND SIZE

Slot

SCREW

• Guide the chain around the selected groove in the

chain spreader (to engage either the 8-tooth

sprocket or the 6-tooth sprocket) as shown

(Figure 3).

• Continue dispensing the chain forward to the

trolley (Figure 4). Reconnect the trolley to the

trolley threaded shaft. Proceed to Assembly

Step 3 for chain tightening instructions.

Rail

Flange

Figure 1

Chain

Spreader

8-Tooth

Sprocket

Motor Unit

Mounting Plate

Outer

Nut

Inner Nut

and Washer Threaded Shaft

Trolley

Chain

Spreader

6-Tooth

Sprocket

Motor Unit

Mounting Plate

Rail

Trolley

Figure 2

Figure 3

Install Chain

In This Direction

Chain

Spreader

Sprocket

Figure 4

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ASSEMBLY STEP 5

Tighten the Chain

Lock

Washer

Outer Nut

Inner Nut

To Tighten Outer Nut

ALL MODELS

To Tighten

Inner Nut

• Spin the inner nut and lock washer down the

trolley threaded shaft, away from the trolley.

• To tighten the chain, turn outer nut in the direction

shown. AS YOU TURN THE NUT, KEEP THE

CHAIN FROM TWISTING.

Trolley

• When the chain is approximately 1/2" (13 mm)

above the base of the rail at its midpoint, re-tighten

the inner nut to secure the adjustment.

Chain

Sprocket noise can result if chain is either too

loose or too tight.

1/2" (13 mm)

NOTE: When installation is complete, you may

notice some chain droop with the door closed. This is

normal. If the chain returns to the position shown

when the door is open, do not re-adjust the chain.

Base of Rail

Mid Length of Rail

NOTE: During future maintenance, ALWAYS pull the

emergency release handle to disconnect trolley

before adjusting chain.

You have now finished assembling your garage

door opener. Please read the following warnings

before proceeding to the installation section.

INSTALLATION

IMPORTANT INSTALLATION INSTRUCTIONS

WARNING

To reduce the risk of SEVERE INJURY or DEATH:

1. READ AND FOLLOW ALL INSTALLATION WARNINGS

8. NEVER wear watches, rings or loose clothing while

installing or servicing opener. They could be caught in

garage door or opener mechanisms.

AND INSTRUCTIONS.

2. Install garage door opener only on properly balanced

and lubricated garage door. An improperly balanced

door may not reverse when required and could result in

SEVERE INJURY or DEATH.

3. All repairs to cables, spring assemblies and other

hardware MUST be made by a trained door systems

technician BEFORE installing opener.

4. Disable all locks and remove all ropes connected to

garage door BEFORE installing opener to avoid

entanglement.

9. Install wall-mounted garage door control:

• within sight of the garage door.

• out of reach of children at minimum height of 5 feet

(1.5 m).

• away from all moving parts of the door.

10. Place entrapment warning label on wall next to garage

door control.

11. Place manual release/safety reverse test label in plain

view on inside of garage door.

5. Install garage door opener 7 feet (2.13 m) or more

12. Upon completion of installation, test safety reversal

system. Door MUST reverse on contact with a

1-1/2” (3.8 cm) high object (or a 2x4 laid flat) on

the floor.

above floor.

6. Mount emergency release handle 6 feet (1.83 m) above

floor.

7. NEVER connect garage door opener to power source

until instructed to do so.

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INSTALLATION STEP 1

Determine the Header Bracket

Location

Finished

Ceiling

Header

Wall

Structural

Supports

2x4

WARNING

To prevent possible SERIOUS INJURY or DEATH:

• Header bracket MUST be RIGIDLY fastened to

structural support on header wall or ceiling, otherwise

garage door might not reverse when required. DO NOT

install header bracket over drywall.

• Concrete anchors MUST be used if mounting header

bracket or 2x4 into masonry.

Vertical

Centerline

of Garage Door

• NEVER try to loosen, move or adjust garage door,

springs, cables, pulleys, brackets, or their hardware, all

of which are under EXTREME tension.

• ALWAYS call a trained door systems technician if

garage door binds, sticks, or is out of balance. An

unbalanced garage door might not reverse when

required.

Installation procedures vary according to garage door

types. Follow the instructions which apply to your

door.

Ceiling

SECTIONAL DOOR

AND ONE-PIECE DOOR WITH TRACK

Header Wall

Track

2" (5 cm)

1. Close the door and mark the inside vertical

centerline of the garage door.

Highest Point

of Travel

2. Extend the line onto the header wall above the

door.

Sectional door

with curved

track

You can fasten the header bracket within 4 feet

(1.2 m) of the left or right of the door center

only if a torsion spring or center bearing plate

is in the way; or you can attach it to the ceiling

(see page 10) when clearance is minimal. (It

may be mounted on the wall upside down if

necessary, to gain approximately 1/2" (1 cm).)

Door

If you need to install the header bracket on a 2x4

(on wall or ceiling), use lag screws (not provided)

to securely fasten the 2x4 to structural supports as

shown here and on page 13.

3. Open your door to the highest point of travel as

shown. Draw an intersecting horizontal line on the

header wall 2" (5 cm) above the high point. This

height will provide travel clearance for the top edge

of the door.

Header Wall

2" (5 cm)

Track

Highest Point

of Travel

Proceed to Step 2, page 14.

One-piece

door with

horizontal

track

Door

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ONE-PIECE DOOR WITHOUT TRACK

Unfinished

Ceiling

1. Close the door and mark the inside vertical

centerline of your garage door. Extend the line

onto the header wall above door, as shown.

Structural

Supports

Header Wall

If headroom clearance is minimal, you can install

the header bracket on the ceiling. See page 14.

2x4

If you need to install the header bracket on a 2x4

(on wall or ceiling), use lag screws (not provided)

to securely fasten the 2x4 to structural supports

as shown.

OPTIONAL

CEILING MOUNT

FOR

HEADER BRACKET

2. Open your door to the highest point of travel as

shown. Measure the distance from the top of the

door to the floor. Subtract the actual height of the

door. Add 8" (20 cm) to the remainder. (See

Example).

Vertical

Centerline

of Garage

Door

3. Close the door and draw an intersecting horizontal

line on the header wall at the determined height.

NOTE: If the total number of inches exceeds the

height available in your garage, use the maximum

height possible, or refer to page 14 for ceiling

installation.

Header Wall

Highest Point

of Travel

EXAMPLE

Distance from top of door

(at highest point of travel) to floor . . . . .92" (234 cm)

Door

Actual height of door . . . . . . . . . . . . . .-88" (224 cm)

Remainder . . . . . . . . . . . . . . . . . . . . . . . . .4" (10 cm)

Add . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+8" (20 cm)

Bracket height on header wall . . . . . . . .=12" (30 cm)

(Measure UP from top of CLOSED door.)

Jamb

Hardware

Proceed to Step 2, page 14.

Floor

One-piece door without track:

jamb hardware

Highest Point

of Travel

Header Wall

Door

Pivot

Floor

One-piece door without track:

pivot hardware

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INSTALLATION STEP 2

Install the Header Bracket

Wall Mounting Holes

You can attach the header bracket either to the wall

above the garage door, or to the ceiling. Follow the

instructions which will work best for your particular

requirements. Do not install the header bracket

over drywall. If installing into masonry, use

concrete anchors (not provided).

CEILING MOUNT ONLY

The nail hole is for

positioning only.

You must use lag screws

to mount the header bracket

Optional

Wall Mounting Holes

WALL HEADER BRACKET INSTALLATION

• Center the bracket on the vertical centerline with

the bottom edge of the bracket on the horizontal

line as shown (with the arrow pointing toward the

ceiling).

Vertical

Centerline

of Garage Door

Header

Wall

Lag Screws

5/16"-9x1-5/8"

• Mark the vertical set of bracket holes (do not use

the holes designated for ceiling mount). Drill 3/16"

pilot holes and fasten the bracket securely to a

structural support with the hardware provided.

2x4

Structural

Support

Header

Bracket

Door Spring

Horizontal

Line

HARDWARE SHOWN ACTUAL SIZE

Garage

Door

Highest Point of

Garage Door Travel

Vertical

Centerline

of Garage Door

Lag Screw

5/16"-9 x 1-5/8"

CEILING HEADER BRACKET INSTALLATION

• Extend the vertical centerline onto the ceiling as

shown.

• Center the bracket on the vertical mark, no more

than 6" (15 cm) from the wall. Make sure the arrow

is pointing toward the wall. The bracket can be

mounted flush against the ceiling when clearance

is minimal.

— Finished Ceiling —

Vertical

Centerline

of Garage Door

Header

Bracket

• Mark the side holes. Drill 3/16" pilot holes and

fasten bracket securely to a structural support with

the hardware provided.

6" (15 cm)

Maximum

Door

Spring

Lag Screws

5/16"-9x1-5/8"

Ceiling Mounting Holes

CEILING MOUNT ONLY

Header Wall

The nail hole is for

positioning only.

You must use lag screws

to mount the header bracket.

Garage Door

Vertical

Centerline

arage Door

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INSTALLATION STEP 3

Attach the Rail to the Header

Bracket

• Position the opener on the garage floor below the

header bracket. Use packing material as a

protective base. NOTE: If the door spring is in the

way you’ll need help. Have someone hold the

opener securely on a temporary support to allow

the rail to clear the spring.

Header Wall

Header Bracket

• Position the rail bracket against the header

bracket.

• Align the bracket holes and join with a clevis pin

as shown.

Chain Pulley Bracket

• Insert a ring fastener to secure.

Ring Fastener

Header Bracket

Clevis Pin

5/16"x2-3/4"

Chain

Pulley

Bracket

Rail

Garage

Door

Temporary

Support

HARDWARE SHOWN ACTUAL SIZE

Clevis Pin

5/16"x2-3/4"

Ring Fastener

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INSTALLATION STEP 4

CAUTION

To prevent damage to garage door, rest garage door

opener rail on 2x4 placed on top section of door.

Position the Opener

Follow instructions which apply to your door type as

illustrated.

SECTIONAL DOOR OR ONE-PIECE DOOR WITH

TRACK

2x4

A 2x4 laid flat is convenient for setting an ideal door-

to-rail distance.

Rail

laid flat

• Raise the opener onto a stepladder. You will need

help at this point if the ladder is not tall enough.

• Open the door all the way and place a 2x4 laid flat

on the top section beneath the rail.

Door

• If the top section or panel hits the trolley when you

raise the door, pull down on the trolley release arm

to disconnect inner and outer sections. Slide the

outer trolley toward the motor unit. The trolley can

remain disconnected until Installation Step 12

is completed.

Trolley

Release Arm

ENGAGED

RELEASED

ONE-PIECE DOOR WITHOUT TRACK

• With the door fully open and parallel to the floor,

measure the distance from the floor to the top of

the door.

Header

Bracket

Top of Opener

• Using a stepladder as a support, raise the top of

the opener to this height.

Top of door

• The top of the door should be level with the top of

the motor unit. Do not position the opener more

than 2" (5 cm) above this point.

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INSTALLATION STEP 5

WARNING

To avoid possible SERIOUS INJURY from a falling

garage door opener, fasten it SECURELY to structural

supports of the garage. Concrete anchors MUST be used

if installing any brackets into masonry.

Hang the Opener

Two representative installations are shown. Yours

may be different. Hanging brackets should be angled

(Figure 1) to provide rigid support. On finished

ceilings (Figure 2), attach a sturdy metal bracket to

structural supports before installing the opener. This

bracket and fastening hardware are not provided.

Figure 1

Structural

Supports

1. Measure the distance from each side of the motor

unit to the structural support.

2. Cut both pieces of the hanging bracket to required

lengths.

Lag Screws

5/16"-18x1-7/8"

Measure

Distance

3. Drill 3/16" pilot holes in the structural supports.

4. Attach one end of each bracket to a support with

5/16"-18x1-7/8" lag screws.

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

5. Fasten the opener to the hanging brackets with

5/16"-18x7/8" hex bolts, lock washers and nuts.

6. Check to make sure the rail is centered over the

door (or in line with the header bracket if the

bracket is not centered above the door).

7. Remove the 2x4. Operate the door manually. If the

door hits the rail, raise the header bracket.

8. Grease the top and underside of the rail surface

where the trolley slides with rail grease.

Figure 2

Hidden

Support

Bracket

(Not Provided)

— FINISHED CEILING —

Lag Screws

5/16"-18x1-7/8"

(Not Provided)

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

HARDWARE SHOWN ACTUAL SIZE

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

Lag Screw 5/16"-9x1-5/8"

Hex Bolt

5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

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INSTALLATION STEP 6

WARNING

Install the Door Control

To prevent possible SERIOUS INJURY or DEATH from

electrocution:

Locate the door control within sight of the door at a

minimum height of 5 feet (1.5 m) where small

children cannot reach, and away from all moving

parts of the door and door hardware.

• Be sure power is not connected BEFORE installing door

control.

• Connect ONLY to 24 VOLT low voltage wires.

To prevent possible SERIOUS INJURY or DEATH from a

1. Strip 1/4" (6 mm) of insulation from one end of the

bell wire. Connect it to the two screw terminals on

the back of the door control by color: white wire to

2 and white/red wire to 1.

closing garage door:

• Install door control within sight of garage door, out of

reach of children at a minimum height of 5 feet (1.5 m),

and away from all moving parts of door.

• NEVER permit children to operate or play with door

control push buttons or remote control transmitters.

• Activate door ONLY when it can be seen clearly, is

properly adjusted, and there are no obstructions to door

travel.

• ALWAYS keep garage door in sight until completely

closed. NEVER permit anyone to cross path of closing

garage door.

2. Fasten the Lighted Door Control Button securely

with 6ABx1-1/2" screws. If installing into drywall,

drill 5/32" holes and use the anchors provided.

3. Run the bell wire up the wall and across the

ceiling to the opener. Use insulated staples to

secure the wire in several places. Do not pierce

wire with a staple, creating a short or open circuit.

4. Receiver terminal screws and the antenna are

located on the back panel of the opener. Position

the antenna wire as shown.

HARDWARE SHOWN ACTUAL SIZE

5. Connect the bell wire to the opener terminal

screws: white to 2 and white/red to 1.

6. Use tacks or staples to permanently attach the

entrapment warning label to the wall near the door

control, and the manual release/safety reverse test

in a prominent location on the inside of the garage

door.

Screw 6ABx1-1/2"

Lighted Door Control Button

Insulated

Staples

Drywall Anchors

NOTE: DO NOT connect the power and operate the

opener at this time. The trolley will travel to the full

open position but will not return to the close position

until the sensor beam is connected and properly

aligned. See Safety Reversing Sensor instructions

beginning on page 21.

Opener

Terminal Screws

Bell Wire

WHT

-2

RED

-1

Lighted Door

Control Button

Terminal Screws

BACK PANEL

Lighted

Antenna

Door Control Button

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INSTALLATION STEP 7

Install the Light and Lens

INSTALL THE LIGHT

• Install a 75 watt maximum light bulb in the socket.

The light will turn ON and remain lit for

approximately 4-1/2 minutes when power is

connected. Then the light will turn OFF.

Panel Screw

Light

Lens

Lens Slot

• Use standard neck Garage Door Opener bulbs for

replacement

75 Watt Max.

Light Bulb

Lens Tab

INSTALL THE LENS

(All models except 1240R)

• Locate and loosen (approximately 1/8" (3 mm)) the

two screws near top of opener front panel.

• Position lens against panel with slotted tabs

directly below screws. Slide lens up to seat tabs

behind screws.

• Snap bottom tabs of lens into panel slots.

• Retighten top panel screws to secure lens.

INSTALLATION STEP 8

Attach the Emergency Release

Rope and Handle

WARNING

To prevent possible SERIOUS INJURY or DEATH from a

falling garage door:

• If possible, use emergency release handle to disengage

trolley ONLY when garage door is CLOSED. Weak or

broken springs or unbalanced door could result in an

open door falling rapidly and/or unexpectedly.

• NEVER use emergency release handle unless garage

doorway is clear of persons and obstructions.

• Thread one end of the rope through the hole in the

top of the red handle so "NOTICE" reads right side

up as shown. Secure with an overhand knot at

least 1" (2.5 mm) from the end of the rope to

prevent slipping.

• Thread the other end of the rope through the hole

in the release arm of the outer trolley.

• NEVER use handle to pull door open or closed. If rope

knot becomes untied, you could fall.

• Adjust rope length so the handle is 6 feet (1.83 m)

above the floor. Secure with an overhand knot.

NOTE: If it is necessary to cut the rope, heat seal

the cut end with a match or lighter to prevent

unraveling.

Overhand

Knot

Trolley

Release Arm

Rope

NOTICE

Emergency

Release Handle

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INSTALLATION STEP 9

WARNING

Electrical Requirements

To prevent possible SERIOUS INJURY or DEATH from

electrocution or fire:

To avoid installation difficulties, do not run the

opener at this time.

• Be sure power is not connected to the opener, and

disconnect power to circuit BEFORE removing cover to

establish permanent wiring connection.

• Garage door installation and wiring MUST be in

compliance with all local electrical and building codes.

• NEVER use an extension cord, 2-wire adapter, or

change plug in ANY way to make it fit outlet. Be sure

the opener is grounded.

To reduce the risk of electric shock, your garage door

opener has a grounding type plug with a third

grounding pin. This plug will only fit into a grounding

type outlet. If the plug doesn't fit into the outlet you

have, contact a qualified electrician to install the

proper outlet.

PERMANENT WIRING

CONNECTION

RIGHT

WRONG

Ground Tab

If permanent wiring is required by your local

code, refer to the following procedure.

Green

Ground Screw

To make a permanent connection through the 7/8"

hole in the top of the motor unit:

Black

Wire

Ground Wire

• Remove the motor unit cover screws and set the

cover aside.

• Remove the attached 3-prong cord.

Black Wire

White Wire

• Connect the black (line) wire to the screw on the

brass terminal; the white (neutral) wire to the

screw on the silver terminal; and the ground wire

to the green ground screw. The opener must be

grounded.

• Reinstall the cover.

To avoid installation difficulties, do not run the

opener at this time.

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INSTALLATION STEP 10

WARNING

Install The Protector System

• Be sure power is not connected to the garage door

opener BEFORE installing the safety reversing sensor.

The safety reversing sensor must be connected

and aligned correctly before the garage door

opener will move in the down direction.

• To prevent SERIOUS INJURY or DEATH from a closing

garage door:

– Correctly connect and align the safety reversing

sensor. This required safety device MUST NOT be

disabled.

IMPORTANT INFORMATION ABOUT

THE SAFETY REVERSING SENSOR

– Install the safety reversing sensor so beam is NO

HIGHER than 6" (15 cm) above garage floor.

When properly connected and aligned, the sensor

will detect an obstacle in the path of its electronic

beam. The sending eye (with an amber indicator

light) transmits an invisible light beam to the

receiving eye (with a green indicator light). If an

obstruction breaks the light beam while the door is

closing, the door will stop and reverse to full open

position, and the opener lights will flash 10 times.

If it is necessary to mount the units on the wall, the

brackets must be securely fastened to a solid

surface such as the wall framing. Extension brackets

(see accessories) are available if needed. If

installing in masonry construction, add a piece of

wood at each location to avoid drilling extra holes in

masonry if repositioning is necessary.

The units must be installed inside the garage so that

the sending and receiving eyes face each other

across the door, no more than 6" (15 cm) above the

floor. Either can be installed on the left or right of the

door as long as the sun never shines directly into the

receiving eye lens.

The invisible light beam path must be unobstructed.

No part of the garage door (or door tracks, springs,

hinges, rollers or other hardware) may interrupt the

beam while the door is closing.

The mounting brackets are designed to clip onto the

track of sectional garage doors without additional

hardware.

Sensor Beam

6" (15 cm) max.

above floor

Invisible Light Beam

Protection Area

6" (15 cm) max.

above floor

Facing the door from inside the garage

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INSTALLING THE BRACKETS

DOOR TRACK MOUNT (RIGHT SIDE)

Be sure power to the opener is disconnected.

Install and align the brackets so the sensors will face

each other across the garage door, with the beam no

higher than 6" (15 cm) above the floor. They may be

installed in one of three ways, as follows.

Figure 1

Door

Track

Lip

Garage door track installation (preferred):

Indicator

Light

• Slip the curved arms over the rounded edge of

each door track, with the curved arms facing the

door. Snap into place against the side of the track.

It should lie flush, with the lip hugging the back

edge of the track, as shown in Figure 1.

Sensor

Bracket

Lens

If your door track will not support the bracket

securely, wall installation is recommended.

Wall installation (Figure 2 & 3):

WALL MOUNT (RIGHT SIDE)

Insi

• Place the bracket against the wall with curved

arms facing the door. Be sure there is enough

clearance for the sensor beam to be unobstructed.

arage

all

Figure 2

Fasten Wood Block to Wall with

Lag Screws (Not Provided)

Indicator

Light

Sensor

Bracket

• If additional depth is needed, an extension bracket

(see Accessories) or wood blocks can be used.

• Use bracket mounting holes as a template to

locate and drill (2) 3/16" diameter pilot holes on

the wall at each side of the door, no higher than 6"

(15 cm) above the floor.

Lag Screws

(Not Provided)

Lens

• Attach brackets to wall with lag screws

(not provided).

• If using extension brackets or wood blocks, adjust

right and left assemblies to the same distance out

from the mounting surface. Make sure all door

hardware obstructions are cleared.

WALL MOUNT (RIGHT SIDE)

Figure 3

Insi

Extension

Bracket

(See Accessories)

arage

all

Floor installation (Figure 4):

(Provided with

Extension Bracket)

• Use wood blocks or extension brackets (see

Accessories) to elevate sensor brackets so the

lenses will be no higher than 6" (15 cm) above the

floor.

• Carefully measure and place right and left

assemblies at the same distance out from the wall.

Be sure all door hardware obstructions are

cleared.

Sensor

(Provided with

Extension

Bracket)

Bracket

• Fasten to the floor with concrete anchors as

shown.

Indicator

Light

Lens

FLOOR MOUNT (RIGHT SIDE)

Figure 4

HARDWARE SHOWN ACTUAL SIZE

Attach with

Concrete Anchors

(Not Provided)

Insi

arage

all

Lens

Indicator

Light

Carriage Bolt

1/4"-20x1/2"

Wing Nut

1/4"-20

Staples

Sensor

Bracket

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MOUNTING AND WIRING THE SAFETY SENSORS

Figure 5

• Slide a 1/4"-20x1/2" carriage bolt head into the slot

on each sensor. Use wing nuts to fasten sensors to

brackets, with lenses pointing toward each other

across the door. Be sure the lens is not obstructed

by a bracket extension (Figure 5).

Wing Nut

Carriage Bolt

1/4"-20x1/2"

• Finger tighten the wing nuts.

Lens

• Run the wires from both sensors to the opener. Use

insulated staples to secure wire to wall and ceiling.

TROUBLESHOOTING THE SAFETY SENSORS

• Strip 1/4" (6 mm) of insulation from each set of

wires. Separate white and white/black wires

sufficiently to connect to the opener terminal

screws: white to 2 and white/black to 3 (Figure 6).

1. If the sending eye indicator light does not glow

steadily after installation, check for:

• Electric power to the opener.

• A short in the white or white/black wires. These

can occur at staples, or at terminal connections.

ALIGNING THE SAFETY SENSORS

• Plug in the opener. The indicator lights in both the

sending and receiving eyes will glow steadily if

wiring connections and alignment are correct.

• Incorrect wiring between sensors and opener.

• A broken wire.

2. If the sending eye indicator light glows steadily but

the receiving eye indicator light doesn't:

The sending eye amber indicator light will glow

regardless of alignment or obstruction. If the green

indicator light in the receiving eye is off, dim, or

flickering (and the invisible light beam path is not

obstructed), alignment is required.

• Check alignment.

• Check for an open wire to the receiving eye.

3. If the receiving eye indicator light is dim, realign

either sensor.

• Loosen the sending eye wing nut and readjust,

aiming directly at the receiving eye. Lock in place.

NOTE: When the invisible beam path is obstructed

or misaligned while the door is closing, the door will

reverse. If the door is already open, it will not close.

The opener lights will blink 10 times. (If bulbs are not

installed, 10 clicks can be heard.) See page 21.

• Loosen the receiving eye wing nut and adjust

sensor until it receives the sender’s beam. When

the green indicator light glows steadily, tighten the

wing nut.

Connect Wire to

Opener Terminal screws

Figure 6

Finished Ceiling

Bell Wire

Sensor

Door Control

Connections

(dotted line)

OPENER TERMINAL SCREWS

Sensor

Invisible Light Beam

Protection Area

Sensor

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INSTALLATION STEP 11

CAUTION

To prevent damage to garage door, reinforce inside of

door with angle iron both vertically and horizontally.

Fasten the Door Bracket

Follow instructions which apply to your door type

as illustrated below or on the following page.

A horizontal reinforcement brace should be long

enough to be secured to two or three vertical

supports. A vertical reinforcement brace should

cover the height of the top panel.

Header

Bracket

Figure 1 shows one piece of angle iron as the

horizontal brace. For the vertical brace, 2 pieces of

angle iron are used to create a U-shaped support.

The best solution is to check with your garage door

manufacturer for an opener installation door

reinforcement kit.

Door

Bracket

Location

HORIZONTAL AND VERTICAL

REINFORCEMENT IS NEEDED

FOR LIGHTWEIGHT GARAGE

DOORS (FIBERGLASS,

ALUMINUM, STEEL, DOORS

WITH GLASS PANEL, ETC.).

(NOT PROVIDED)

NOTE: Many door reinforcement kits provide for

direct attachment of the clevis pin and door arm. In

this case you will not need the door bracket; proceed

to Step 12.

Vertical

Centerline

of Garage

Door

SECTIONAL DOORS

1. Center the door bracket on the previously marked

vertical centerline used for the header bracket

installation. Note correct UP placement, as

stamped inside the bracket.

Figure 1

Vertical

Reinforcement

(Not Provided)

2. Position the top edge of the bracket 2"-4"

(5-10 cm) below the top edge of the door, OR

directly below any structural support across the

top of the door.

Vertical

Centerline

of Garage Door

Vertical

Reinforcement

Vertical

Centerline

of Garage Door

Bolt

5/16"-18x2"

3. Mark, drill holes and install as follows, depending

on your door’s construction:

Door

Bracket

Metal or light weight doors using a vertical angle

iron brace between the door panel support and

the door bracket:

Lock Washer

Door

Bracket

5/16"

Nut

5/16"-18

Self-Threading

• Drill 3/16" fastening holes. Secure the door bracket

using the two 1/4"-14x5/8" self-threading screws.

(Figure 2A)

Screw

Figure 2B

1/4"-14x5/8"

Figure 2A

• Alternately, use two 5/16" bolts, lock washers and

nuts (not provided). (Figure 2B)

Inside Edge

of Door or

Reinforcement Board

(Not Provided)

Metal, insulated or light weight factory reinforced

doors:

Bolt

5/16"x2"

• Drill 3/16" fastening holes. Secure the door bracket

using the self-threading screws (Figure 3).

Vertical

Centerline

Wood Doors:

of Garage Door

• Use top and bottom or side to side door bracket

holes. Drill 5/16" holes through the door and

secure bracket with 5/16"x2" carriage bolts, lock

washers and nuts (not provided). (Figure 4)

Vertical

Centerline

of Garage

Figure 4

Self-Threading

Screw

1/4"-14x5/8"

NOTE: The 1/4"-14x5/8"

HARDWARE

SHOWN

ACTUAL SIZE

self-threading screws are

Figure 3

not intended for use on

wood doors.

Self-Threading

Screw

1/4"-14x5/8"

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ONE-PIECE DOORS

Please read and comply with the warnings and

reinforcement instructions on the previous page.

They apply to one-piece doors also.

• Center the door bracket on the top of the door, in

line with the header bracket as shown. Mark either

the left and right, or the top and bottom holes.

• Metal Doors: Drill 3/16" pilot holes and fasten the

bracket with the 1/4"-14x5/8" self-threading screws

provided.

HARDWARE SHOWN

ACTUAL SIZE

• Wood Doors: Drill 5/16" holes and use 5/16"x2"

carriage bolts, lock washers and nuts (not

provided) or 5/16"x1-1/2" lag screws (not provided)

depending on your installation needs.

Self-Threading Screw

1/4"-14x5/8"

NOTE: The door bracket may be installed on the top

edge of the door if required for your installation.

(Refer to the dotted line optional placement drawing.)

Self-Threading

Screw

1/4"-14x5/8"

Door

Bracket

Top of Door

Header Wall

Finished Ceiling

(Inside

2x4 Support

Garage)

Top Edge

of Door

Header

Bracket

Optional

Placement

Door

Bracket

METAL DOOR

Optional

HORIZONTAL AND VERTICAL

REINFORCEMENT IS NEEDED

FOR LIGHTWEIGHT GARAGE

DOORS (FIBERGLASS,

Placement

of Door

Nut

5/16"-18

Lock

Washer

5/16"

Bracket

ALUMINUM, STEEL, DOORS

WITH GLASS PANEL, ETC.).

(NOT PROVIDED)

Top of Door

Door

Bracket

Vertical

Centerline of

Garage Door

(Inside

Garage)

Top Edge

of Door

Optional

Placement

Carriage Bolt

5/16"x2"

(Not Provided)

WOOD DOOR

For a door with no exposed framing,

or for the optional installation, use

lag screws 5/16"x1-1/2" (Not Provided)

to fasten door bracket.

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Inner Trolley

INSTALLATION STEP 12

Connect Door Arm to Trolley

Outer Trolley

Follow instructions which apply to your door type as

illustrated below and on the following page.

Clevis Pin

5/16"x1"

SECTIONAL DOORS ONLY

Ring

Fastener

• Make sure garage door is fully closed. Pull the

emergency release handle to disconnect the outer

trolley from the inner trolley. Slide the outer trolley

back (away from the door) about 2" (5 cm) as

shown in Figures 1, 2 and 3.

Door

Bracket

• Figure 1:

Straight

Door Arm

– Fasten straight door arm section to outer trolley

with the 5/16"x1" clevis pin. Secure the

connection with a ring fastener.

Curved

Door Arm

Clevis Pin

5/16"x1-1/4"

– Fasten curved section to the door bracket in the

same way, using the 5/16"x1-1/4" clevis pin.

Figure 1

• Figure 2:

– Bring arm sections together. Find two pairs of

holes that line up and join sections. Select holes

as far apart as possible to increase door arm

rigidity.

• Figure 3, Hole alignment alternative:

– If holes in curved arm are above holes in straight

arm, disconnect straight arm. Cut about 6" from

the solid end. Reconnect to trolley with cut end

down as shown.

Lock

Washers

5/16"

– Bring arm sections together.

Nuts

5/16"-18

Emergency

Release

Handle

– Find two pairs of holes that line up and join with

bolts, lock washers and nuts.

• Proceed to Adjustment Step 1, page 28. Trolley will

re-engage automatically when opener is operated.

Bolts

5/16"-18x7/8"

Door Bracket

Figure 2

HARDWARE SHOWN ACTUAL SIZE

Nut 5/16"-18

Lock Washer 5/16" Ring Fastener

Lock

Washers

5/16"

Nuts

5/16"-18

Clevis Pin

5/16"x1" (Trolley)

Clevis Pin

Hex Bolt

5/16"x1-1/4" (Door Bracket) 5/16"-18x7/8"

Bolts

5/16"-18x7/8"

Cut This End

Figure 3

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Door

Bracket

ALL ONE-PIECE DOORS

Ring

Fastener

1. Assemble the door arm, Figure 4:

Nuts

5/16"-18

Lock

Washers

5/16"

• Fasten the straight and curved door arm sections

together to the longest possible length (with a 2

or 3 hole overlap).

Clevis Pin

5/16"x1-1/4"

Straight

Arm

• With the door closed, connect the straight door

arm section to the door bracket with the

5/16"x1-1/4" clevis pin.

Bolts

5/16"-18x7/8

Curved

Door Arm

Figure 4

• Secure with a ring fastener.

- Press the Door Control push button. The trolley

will travel to the fully closed position.

2. Adjustment procedures, Figure 5:

• On one-piece doors, before connecting the door

arm to the trolley, the travel limits must be

adjusted. Limit adjustment screws are located on

the left side panel as shown on page 28. Follow

adjustment procedures below.

- Manually close the door and lift the door arm to

the trolley. The arm should touch the trolley just

ahead of the door arm connector hole. Refer to

the fully closed trolley/door arm positions in the

illustration. If the arm is behind the connector

hole, adjust the limit further. One full turn equals

2" (5 cm) of trolley travel.

• Open door adjustment: decrease UP

travel limit

- Turn the UP limit adjustment screw counter-

clockwise 5-1/2 turns.

3. Connect the door arm to the trolley:

• Close the door and join the curved arm to the

connector hole in the trolley with the remaining

clevis pin. It may be necessary to lift the door

slightly to make the connection.

- Press the Door Control push button. The trolley

will travel to the fully open position.

- Manually raise the door to the open position

(parallel to the floor), and lift the door arm to the

trolley. The arm should touch the trolley just in

back of the door arm connector hole. Refer to

the fully open trolley/door arm positions in the

illustration. If the arm does not extend far

enough, adjust the limit further. One full turn

equals 2" (5 cm) of trolley travel.

• Secure with a ring fastener.

• Run the opener through a complete travel cycle. If

the door has a slight "backward" slant in full open

position as shown in the illustration, decrease the

UP limit until the door is parallel to the floor.

NOTE: When setting the up limit on the following

page, the door should not have a "backward" slant

when fully open as illustrated below. A slight

backward slant will cause unnecessary bucking

and/or jerking operation as the door is being opened

or closed from the fully open position.

• Closed door adjustment: decrease DOWN

travel limit

- Turn the DOWN limit adjustment screw

clockwise 5 complete turns.

Fully Closed

Trolley

Figure 5

Door Arm

Connector Hole

Door Arm

Emergency Release Handle

Closed

Door

Fully Open

Trolley

Door Arm

Connector Hole

Correct Angle

Door Arm

Door with

Backward Slant

(Undesirable)

Open Door

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ADJUSTMENT STEP 1

WARNING

Without a properly installed safety reversal system,

persons (particularly small children) could be

SERIOUSLY INJURED or KILLED by a closing garage

door.

• Incorrect adjustment of garage door travel limits will

interfere with proper operation of safety reversal

system.

Adjust the UP and DOWN Travel

Limits

Limit adjustment settings regulate the points at which

the door will stop when moving up or down.

To operate the opener, press the Door Control push

bar. Run the opener through a complete travel cycle.

• Does the door open and close completely?

• If one control (force or travel limits) is adjusted, the

other control may also need adjustment.

• Does the door stay closed and not reverse

unintentionally when fully closed?

• After ANY adjustments are made, the safety reversal

system MUST be tested. Door MUST reverse on

contact with 1-1/2" (3.8 cm) high object (or 2x4 laid

flat) on floor.

If your door passes both of these tests, no limit

adjustments are necessary unless the reversing test

fails (Adjustment Step 3, page 30).

Adjustment procedures are outlined below. Read the

procedures carefully before proceeding to

Adjustment Step 2. Use a screwdriver to make limit

adjustments. Run the opener through a complete

travel cycle after each adjustment.

CAUTION

To prevent damage to vehicles, be sure fully open door

provides adequate clearance.

NOTE: Repeated operation of the opener during

adjustment procedures may cause the motor to

overheat and shut off. Simply wait 15 minutes and

try again.

NOTE: If anything interferes with the door’s upward

travel, it will stop. If anything interferes with the

door’s downward travel (including binding or

unbalanced doors), it will reverse.

2-4"

(5-10 cm)

LEFT SIDE PANEL

HOW AND WHEN TO ADJUST THE LIMITS

Travel Limit Adjustment Screws

• If the door does not open completely but opens

at least 5 feet (1.5 m):

Increase up travel. Turn the UP limit adjustment

screw clockwise. One turn equals 2" (5 cm) of

travel.

NOTE: To prevent the trolley from hitting the cover

protection bolt, keep a minimum distance of 2-4"

(5-10 cm) between the trolley and the bolt.

Adjustment Label

• If door does not open at least 5 feet (1.5 m):

Adjust the UP (open) force as explained in

Adjustment Step 2.

• If the door reverses when closing and there is

no visible interference to travel cycle:

• If the door does not close completely:

Increase down travel. Turn the down limit

adjustment screw counterclockwise. One turn

equals 2" (5 cm) of travel.

If the opener lights are flashing, the Safety

Reversing Sensors are either not installed,

misaligned, or obstructed. See Troubleshooting,

page 23.

If door still won't close completely and the trolley

bumps into the pulley bracket (page 4), try

lengthening the door arm (page 26) and

decreasing the down limit.

Test the door for binding: Pull the emergency

release handle. Manually open and close the door.

If the door is binding or unbalanced, call for a

trained door systems technician. If the door is

balanced and not binding, adjust the DOWN

(close) force. See Adjustment Step 2.

• If the opener reverses in fully closed position:

Decrease down travel. Turn the down limit

adjustment screw clockwise. One turn equals 2"

(5 cm) of travel.

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ADJUSTMENT STEP 2

WARNING

Adjust the Force

Without a properly installed safety reversal system,

persons (particularly small children) could be

SERIOUSLY INJURED or KILLED by a closing garage

door.

Force adjustment controls are located on the back

panel of the motor unit. Force adjustment settings

regulate the amount of power required to open and

close the door.

• Too much force on garage door will interfere with

proper operation of safety reversal system.

• NEVER increase force beyond minimum amount

required to close garage door.

• NEVER use force adjustments to compensate for a

binding or sticking garage door.

• If one control (force or travel limits) is adjusted, the

other control may also need adjustment.

• After ANY adjustments are made, the safety reversal

system MUST be tested. Door MUST reverse on

contact with 1-1/2" (3.8 cm) high object (or 2x4 laid

flat) on floor.

If the forces are set too light, door travel may be

interrupted by nuisance reversals in the down

direction and stops in the up direction. Weather

conditions can affect the door movement, so

occasional adjustment may be needed.

The maximum force adjustment range is about

3/4 of a complete turn. Do not force controls

beyond that point. Turn force adjustment controls

with a screwdriver.

NOTE: If anything interferes with the door’s upward

travel, it will stop. If anything interferes with the

door’s downward travel (including binding or

unbalanced doors), it will reverse.

HOW AND WHEN TO ADJUST THE FORCES

1. Test the DOWN (close) force

Force Adjustment Controls

• Grasp the door bottom when the door is about

halfway through DOWN (close) travel. The door

should reverse. Reversal halfway through down

travel does not guarantee reversal on a 1-1/2"

(3.8 cm) obstruction. See Adjustment Step 3,

page 30.

If the door is hard to hold or doesn't reverse,

DECREASE the DOWN (close) force by turning

the control counterclockwise. Make small

adjustments until the door reverses normally. After

each adjustment, run the opener through a

complete cycle.

• If the door reverses during the down (close)

cycle and the opener lights aren't flashing,

INCREASE DOWN (close) force by turning the

control clockwise. Make small adjustments until the

door completes a close cycle. After each

BACK PANEL

adjustment, run the opener through a complete

travel cycle. Do not increase the force beyond the

minimum amount required to close the door.

2. Test the UP (open) force

• Grasp the door bottom when the door is about

halfway through UP (open) travel. The door should

stop. If the door is hard to hold or doesn't stop,

DECREASE UP (open) force by turning the control

counterclockwise. Make small adjustments until the

door stops easily and opens fully. After each

adjustment, run the opener through a complete

travel cycle.

FORCE ADJUSTMENT LABEL

• If the door doesn’t open at least 5 feet (1.5 m),

INCREASE UP (open) force by turning the control

clockwise. Make small adjustments until door

opens completely. Readjust the UP limit if

necessary. After each adjustment, run the opener

through a complete travel cycle.

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ADJUSTMENT STEP 3

WARNING

Test the Safety Reversal System

Without a properly installed safety reversal system,

persons (particularly small children) could be

SERIOUSLY INJURED or KILLED by a closing garage

door.

TEST

• With the door fully open, place a 1-1/2" (3.8 cm)

board (or a 2x4 laid flat) on the floor, centered

under the garage door.

• Safety reversal system MUST be tested every month.

• If one control (force or travel limits) is adjusted, the

other control may also need adjustment.

• After ANY adjustments are made, the safety reversal

system MUST be tested. Door MUST reverse on

contact with 1-1/2" (3.8 cm) high object (or 2x4 laid

flat) on the floor.

• Operate the door in the down direction. The door

must reverse on striking the obstruction.

ADJUST

• If the door stops on the obstruction, it is not

traveling far enough in the down direction.

Increase the DOWN limit by turning the DOWN

limit adjustment screw counterclockwise 1/4 turn.

NOTE: On a sectional door, make sure limit

adjustments do not force the door arm beyond a

straight up and down position. See the illustration

on page 26.

• Repeat the test.

• When the door reverses on the 1-1/2" (3.8 cm)

board, remove the obstruction and run the opener

through 3 or 4 complete travel cycles to test

adjustment.

IMPORTANT SAFETY CHECK:

Repeat Adjustment Steps 1, 2 and 3 after:

• Each adjustment of door arm length, limits, or

force controls.

• Any repair to or adjustment of the garage door

(including springs and hardware).

1-1/2" (3.8 cm) board

(or a 2x4 laid flat)

• Any repair to or buckling of the garage floor.

• Any repair to or adjustment of the opener.

WARNING

Without a properly installed safety reversing sensor,

persons (particularly small children) could be

SERIOUSLY INJURED or KILLED by a closing garage

door.

ADJUSTMENT STEP 4

Test the Protector System

• Press the remote control push button to open the

door.

• Place the opener carton in the path of the door.

• Press the remote control push button to close the

door. The door will not move more than an inch,

and the opener lights will flash.

The garage door opener will not close from a remote

if the indicator light in either sensor is off (alerting

you to the fact that the sensor is misaligned or

obstructed).

If the opener closes the door when the safety

reversing sensor is obstructed (and the sensors

are no more than 6" (15 cm) above the floor), call

for a trained door systems technician.

Safety Reversing Sensor

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OPERATION

IMPORTANT SAFETY INSTRUCTIONS

WARNING

To reduce the risk of SEVERE INJURY or DEATH:

1. READ AND FOLLOW ALL WARNINGS AND

INSTRUCTIONS.

9. If one control (force or travel limits) is adjusted, the

other control may also need adjustment.

2. ALWAYS keep remote controls out of reach of children.

NEVER permit children to operate or play with garage

door control push buttons or remote controls.

3. ONLY activate garage door when it can be seen clearly, it

is properly adjusted, and there are no obstructions to

door travel.

4. ALWAYS keep garage door in sight until completely

closed. NO ONE SHOULD CROSS THE PATH OF THE

MOVING DOOR.

10. After ANY adjustments are made, the safety reversal

system MUST be tested.

11. Safety reversal system MUST be tested every month.

Garage door MUST reverse on contact with 1-1/2"

(3.8 cm) high object (or a 2 x 4 laid flat) on the floor.

12. ALWAYS KEEP GARAGE DOOR PROPERLY BALANCED

(see page 3). An improperly balanced door may not

reverse when required and could result in SEVERE

INJURY or DEATH.

5. NO ONE SHOULD GO UNDER A STOPPED, PARTIALLY

13. All repairs to cables, spring assemblies and other

hardware, all of which are under EXTREME tension,

MUST be made by a trained door systems technician.

14. ALWAYS disconnect electric power to garage door

opener BEFORE making any repairs or removing

covers.

OPEN DOOR.

6. If possible, use emergency release handle to disengage

trolley ONLY when garage door is CLOSED. Weak or

broken springs or unbalanced door could result in an

open door falling rapidly and/or unexpectedly.

7. NEVER use emergency release handle unless garage

15.

SAVE THESE INSTRUCTIONS.

doorway is clear of persons and obstructions.

8. NEVER use handle to pull garage door open or closed. If

rope knot becomes untied, you could fall.

4. If the door has been stopped in a partially open

position, it will close.

Using Your Garage Door Opener

Your Security✚^®opener and hand-held remote

control have been factory-set to a matching code

which changes with each use, randomly accessing

over 100 billion new codes. Your opener will operate

with up to eight Security✚^®remote controls and one

Security✚^®Keyless Entry System. If you purchase a

new remote, or if you wish to deactivate any remote,

follow the instructions in the Programming section.

5. If obstructed while closing, the door will reverse. If

the obstruction interrupts the sensor beam, the

opener lights will blink for five seconds.

6. If obstructed while opening, the door will stop.

7. If fully open, the door will not close when the beam

is broken. The sensor has no effect in the opening

cycle.

If the sensor is not installed, or is misaligned, the

door won't close from a hand-held remote. However,

you can close the door with the Door Control, the

Outside Keylock, or Keyless Entry, if you activate

them until down travel is complete. If you release

them too soon, the door will reverse.

Activate your opener with any of the following:

• The hand-held Remote Control: Hold the push

button down until the door starts to move.

• The wall-mounted Door Control: Hold the push

button or bar down until the door starts to move.

• The Keyless Entry (See Accessories): If supplied

with your garage door opener, it must be

programmed before use. See Programming.

The opener light will turn on under the following

conditions: when the opener is initially plugged in;

when power is restored after interruption; when the

opener is activated.

When the opener is activated (with the safety

reversing sensor correctly installed and aligned)

1. If open, the door will close. If closed, it will open.

The light will also turn on when someone walks

through the open garage door.

2. If closing, the door will reverse.

It will turn off automatically after 4-1/2 minutes. Bulb

size is 75 watts maximum.

3. If opening, the door will stop.

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Using the Wall-Mounted

Door Control

To Open the Door Manually

WARNING

Press the push button to open or close the

door. Press again to reverse the door during

the closing cycle or to stop the door while it's

opening.

To prevent possible SERIOUS INJURY or DEATH from a

falling garage door:

• If possible, use emergency release handle to disengage

trolley ONLY when garage door is CLOSED. Weak or

broken springs or unbalanced door could result in an

open door falling rapidly and/or unexpectedly.

• NEVER use emergency release handle unless garage

doorway is clear of persons and obstructions.

• NEVER use handle to pull door open or closed. If rope

knot becomes untied, you could fall.

The door should be fully

closed if possible. Pull down

on the emergency release

Trolley

handle and lift the door

Release

manually. To reconnect the

door to the opener, press the

door control push button.

Emergency

Release

Arm

Handle

(Pull Down)

MANUAL DISCONNECT

POSITION

The lockout feature prevents

the trolley from reconnecting

automatically, Pull the

emergency release handle

down and back (toward the

opener). The door can then be

raised and lowered manually

as often as necessary. To

Trolley

Release

Arm

Emergency

Release Handle

(Down and Back)

disengage the lockout feature,

pull the handle straight down.

The trolley will reconnect on

the next UP or DOWN operation.

LOCKOUT POSITION

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Having a Problem?

Care of Your Opener

1. The opener doesn't operate from either the

Door Control or the remote control:

LIMIT AND FORCE ADJUSTMENTS:

Weather conditions may cause

some minor changes in door

operation requiring some

• Does the opener have electric power? Plug a lamp

into the outlet. If it doesn't light, check the fuse box

or the circuit breaker. (Some outlets are controlled

by a wall switch.)

readjustments, particularly

during the first year of operation.

LIMIT CONTROLS

(Left side panel)

• Have you disabled all door locks? Review

installation instruction warnings on page 11.

Pages 28 and 29 refer to the

limit and force adjustments.

Only a screwdriver is required.

Follow the instructions carefully.

• Is there a build-up of ice or snow under the door?

The door may be frozen to the ground. Remove

any restriction.

Open Force Close Force

Repeat the safety reverse test

(page 30) after any adjustment

of limits or force.

• The garage door spring may be broken. Have it

replaced.

FORCE CONTROLS

(Back panel)

• Repeated operation may have tripped the

overload protector in the motor. Wait 15 minutes

and try again.

MAINTENANCE SCHEDULE

Once a Month

2. Opener operates from the remote, but not from

the Door Control:

• Manually operate door. If it is unbalanced or

binding, call a trained door systems technician.

• Is the door control lit? If not, remove the bell wire

from the motor unit terminals. Short the red and

white terminals by touching both terminals at the

same time with a piece of wire. If the opener runs,

check for a faulty wire connection at the door

control, a short under the staples, or a broken

wire.

• Check to be sure door opens & closes fully. Adjust

limits and/or force if necessary. (See pages 28

and 29.)

• Repeat the safety reverse test. Make any

necessary adjustments. (See page 30.)

Twice a Year

• Check chain tension. Disconnect trolley first. Adjust

if necessary (see page 11).

• Are the wiring connections correct? Review

Installation Step 6, page 18.

Once a Year

3. The door operates from the Door Control, but

not from the remote control:

• Oil door rollers, bearings and hinges. The opener

does not require additional lubrication. Do not

grease the door tracks.

• Is the door push bar flashing? If your model has

the Lock feature, make sure it is off.

THE REMOTE CONTROL BATTERY

• Program the opener to match the remote control

code. (Refer to instructions on the motor unit

panel.) Repeat with all remotes.

WARNING

To prevent possible SERIOUS INJURY or DEATH:

• NEVER allow small children near batteries.

• If battery is swallowed, immediately notify doctor.

4. The remote control has short range:

• Change the location of the remote control in your

car.

• Check to be sure the antenna on the side or back

panel of motor unit extends fully downward.

• Some installations may have shorter range due to

a metal door, foil backed insulation, or metal

garage siding.

The lithium battery should

produce power for up to

5 years. To replace battery, use

the visor clip or screwdriver

blade to pry open the case as

shown. Insert battery positive

side up.

Battery

positive

side up (+)

5. Opener noise is disturbing in living quarters of

home:

• If operational noise is a problem because of

proximity of the opener to the living quarters, the

Vibration Isolator Kit 89LM can be installed. This

kit was designed to minimize vibration to the house

and is easy to install.

Dispose of old battery properly.

NOTICE: To comply with FCC and or Industry Canada (IC) rules, adjustment or

modifications of this receiver and/or transmitter are prohibited, except for changing the

code setting or replacing the battery. THERE ARE NO OTHER USER SERVICEABLE PARTS.

Tested to Comply with FCC Standards FOR HOME OR OFFICE USE. Operation is subject to

the following two conditions: (1) this device may not cause harmful interference, and

(2) this device must accept any interference received, including interference that may

cause undesired operation.

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11. The door reverses for no apparent reason and

opener lights blink for 5 seconds after

reversing:

Having a Problem? (Continued)

6. The garage door opens and closes by itself:

• Be sure that all remote control push buttons are

off.

• Check the safety reversing sensor. Remove any

obstruction or align the receiving eye. See

Installation Step 10.

• Remove the bell wire from the door control

terminals and operate from the remote only. If this

solves the problem, the door control is faulty

(replace), or there is an intermittent short on the

wire between the door control and the motor unit.

12. The opener lights don't turn on:

• Replace the light bulbs (75 watts maximum). Use a

standard neck garage door opener bulb if regular

bulb burns out.

• Clear memory and re-program all remote controls.

13. The opener lights don't turn off:

• Is the Light feature on? Turn it off.

7. The door doesn't open completely:

• Is something obstructing the door? Is it out of

balance, or are the springs broken? Remove the

obstruction or repair the door.

14. The opener strains or maximum force is

needed to operate door:

• The door may be out of balance or the springs

may be broken. Close the door and use the

emergency release handle to disconnect the

trolley. Open and close the door manually. A

properly balanced door will stay in any point of

travel while being supported entirely by its springs.

If it does not, disconnect the opener and call a

trained door systems technician. Do not increase

the force to operate the opener.

• If the door is in good working order but now

doesn't open all the way, increase the up force.

See Adjustment Step 2.

• If the door opens at least 5 feet (1.5 m), the travel

limits may need to be increased. One turn equals

2" (5 cm) of travel. See Adjustment Step 1.

Repeat the safety reverse test after the adjustment is

complete.

8. The door stops but doesn't close completely:

15. The opener motor hums briefly, then won't

work:

• Review the travel limits adjustment procedures on

page 28.

• The garage door springs may be broken. See

above.

Repeat the safety reverse test after any adjustment

of door arm length, close force or down limit.

• If the problem occurs on the first operation of the

opener, door may be locked. Disable the door lock.

9. The door opens but won't close:

• If the opener lights blink, check the safety

reversing sensor. See Installation Step 10.

Repeat the safety reverse test after the adjustment is

complete.

16. The opener won't operate due to power

failure:

• If the opener lights don’t blink and it is a new

installation, check the down force. See Adjustment

Step 2, page 29. For an existing installation, see

below.

• Use the emergency release handle to disconnect

the trolley. The door can be opened and closed

manually. When power is restored, press the Door

Control push bar and trolley will automatically

reconnect (unless trolley is in lockout position.)

See page 32.

Repeat the safety reverse test after the adjustment

is complete.

10. The door reverses for no apparent reason and

opener lights don’t blink:

• The Outside Quick Release accessory (for use on

garages with no service door) disconnects the

trolley from outside the garage in case of power

failure.

• Is something obstructing the door? Pull the

emergency release handle. Operate the door

manually. If it is unbalanced or binding, call a

trained door systems technician.

17. The chain droops or sags:

• Clear any ice or snow from the garage floor area

where the door closes.

• It is normal for the chain to droop slightly in the

closed door position. Use the emergency release

rope and handle to disconnect the trolley. If the

chain returns to the normal height when the trolley

is disengaged, and the door reverses on a 2x4 laid

flat, no adjustments are needed. (See page 11.)

• Review Adjustment Step 2 on page 29.

• If door reverses in the fully closed position,

decrease the travel limits (Adjustment Step 1).

Repeat safety reverse test after adjustments to force

or travel limits. The need for occasional adjustment

of the force and limit settings is normal. Weather

conditions in particular can affect door travel.

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PROGRAMMING

NOTICE: If this Security✚^®garage door opener is operated with a non-rolling code transmitter, the technical

measure in the receiver of the garage door opener, which provides security against code-theft devices, will be

circumvented. The owner of the copyright in the garage door opener does not authorize the purchaser or

supplier of the non-rolling code transmitter to circumvent that technical measure.

Your garage door opener has already been programmed at the factory to operate with your hand-held remote

control. The door will open and close when you press the large push button.

Below are instructions for programming your opener to operate with additional Security✚^®remote controls.

To Add or Reprogram an Additional Hand-held Remote Control

USING THE “LEARN” BUTTON

USING THE MULTI-FUNCTION DOOR CONTROL

LOCK

LIGHT

1. Press and release the “learn”

button on the motor unit. The

learn indicator light will glow

steadily for 30 seconds.

1. Press and hold the button on the

hand-held remote* that you wish

to operate your garage door.

2. While holding the remote button,

press and hold the LIGHT button

on the Multi-Function Door

2. Within 30 seconds, press and

hold the button on the hand-held

remote* that you wish to operate

your garage door.

Control.

LOCK

LIGHT

3. Continue holding both buttons

while you press the push bar on

the Multi-Function Door Control

(all three buttons are held).

3. Release the button when the

motor unit lights blink. It has

learned the code. If light bulbs are

not installed, two clicks will be

heard.

LOCK

LIGHT

4. Release buttons when the motor

unit lights blink. It has learned the

code. If light bulbs are not

installed, two clicks will be heard.

To Erase All Codes From Motor

Unit Memory

*3-Button Remotes

If supplied with your

garage door opener,

the large button is

factory programmed to

operate it. Additional

buttons on any

To deactivate any unwanted remote,

first erase all codes:

Press and hold the “learn” button on

motor unit until the learn indicator

light goes out (approximately 6 seconds). All previous

codes are now erased. Reprogram each remote or

keyless entry you wish to use.

Security✚^®3-button

remote or mini-remote can be programmed to operate

other Security✚^®garage door openers.

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To Add, Reprogram or Change a Keyless Entry PIN

NOTE: Your new Keyless Entry must be programmed to operate your garage door opener.

USING THE “LEARN” BUTTON

USING THE MULTI-FUNCTION DOOR CONTROL

LOCK

LIGHT

1. Press and release the “learn”

button on motor unit. The learn

indicator light will glow steadily for

30 seconds.

NOTE: This method requires two people if the Keyless

Entry is already mounted outside the garage.

1. Enter a four digit personal

identification number (PIN) of your

choice on the keypad. Then press

and hold ENTER.

2. Within 30 seconds, enter a four

digit personal identification

number (PIN) of your choice on

the keypad. Then press and hold

the ENTER button.

2. While holding the ENTER button,

press and hold the LIGHT button

on the Multi-Function Door

Control.

LOCK

LIGHT

3. Release the button when the

motor unit lights blink. It has

learned the code. If light bulbs are

not installed, two clicks will be

heard.

3. Continue holding the ENTER and

LIGHT buttons while you press

the push bar on the Multi-Function

Door Control (all three buttons are

held).

LOCK

LIGHT

To change an existing, known PIN

If the existing PIN is known, it may be changed by one

person without using a ladder.

4. Release buttons when the motor

unit lights blink. It has learned the

code. If light bulbs are not

1. Press the four buttons for the present PIN, then

press and hold the # button.

installed, two clicks will be heard.

The opener light will blink twice. Release the #

button.

2. Press the new 4-digit PIN you have chosen, then

press Enter.

2. Press the temporary 4-digit PIN you have chosen,

then press Enter.

The motor unit lights will blink once when the PIN has

been learned.

The opener light will blink four times.

3. To set the number of hours this temporary PIN will

work, press the number of hours (up to 255), then

press ✽.

Test by pressing the new PIN, then press Enter. The

door should move.

To set a temporary PIN

You may authorize access by visitors or service people

with a temporary 4-digit PIN. After a programmed

number of hours or number of accesses, this temporary

PIN expires and will no longer open the door. It can be

used to close the door even after it has expired. To set

a temporary PIN:

3. To set the number of times this temporary PIN will

work, press the number of times (up to 255), then

press #.

The opener light will blink once when the temporary PIN

has been learned.

Test by pressing the four buttons for the temporary PIN,

then press Enter. The door should move. If the

temporary PIN was set to a certain number of openings,

remember that the test has used up one opening.To

clear the temporary password, repeat steps 1-3, setting

the number of hours or times to 0 in step 3.

1. Press the four buttons for your personal entry PIN

(not the last temporary PIN), then press and hold the

✽ button.

The opener light will blink three times. Release the

button.

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REPAIR PARTS

Rail Assembly Parts

KEY

NO.

PART

NO.

DESCRIPTION

4A1008

Master link kit

41A4813

41A3489

1707LM

41D3484

83A11-2

Chain pulley bracket

Complete trolley assembly

One-piece rail

Full chain assembly

Rail grease

Installation Parts

KEY

NO.

PART

NO.

DESCRIPTION

41A4166

971LM

Door control button

Single-button remote control

3V2032 Lithium battery

Transmitter visor clip

10A20

29B137

41A2828

Emergency release rope & handle

assembly

41B4494-1

2-conductor bell wire – white &

white/red

NOTICE

41A4353

41A5047

41A5034

Header bracket w/clevis pin & fastener

Door bracket w/clevis pin & fastener

Safety sensor kit (receiving and

sending eyes) with 3' (.9 m)

2-conductor bell wire attached

178B34

Straight door arm section

Curved door arm section

Safety sensor brackets (2)

Not shown

178B35

41A5266-1

41A2770-6

114A2217

Installation hardware bag

(see page 7).

Owner’s manual

114A2217SP Owner’s manual - Spanish

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Motor Unit Assembly Parts

LIMIT SWITCH ASSY.

(Down)

Contact

Brown

Wire

D N

Grey

Wire

U P

Drive

Gear

Center Limit

Contact

(Up)

Contact

Yellow

Wire

KEY PART

NO.

KEY PART

NO.

DESCRIPTION

NO.

DESCRIPTION

41A4208 Chain spreader w/screws

(1256R, 1246R)

41D3058

Universal replacement motor &

bracket assy. Complete with:

Motor, worm, bracket, bearing

assembly, RPM sensor.

1A 31D380 Sprocket cover (all other models)

41C4206A Gear and sprocket assy.

(1256R, 1246R)

41A3583-11 Cover (1256R, 1255R)

41A3583-15 Cover (1246R, 1245R)

41A3583-16 Cover (1240R)

2A 41C4220A Gear and sprocket assy. (All other

models) Complete with:

Spring washer, Thrust washer,

41A2818

41D3452

Helical gear & retainer w/grease

Limit switch asembly

Retaining ring, Bearing plate, Roll

pins (2), Drive gear and worm gear,

Helical gear w/retainer and grease

41C4398A RPM sensor assembly

41C4246

41A2826

Wire harness assy. w/plug

Shaft bearing kit

41A2817 Drive/worm gear kit w/grease,

Roll pins (2)

41A2822A Interrupter cup assy.

41B4245 Line cord

41A5021-1G Receiver logic board assy.

Complete with: Logic board,

End panel w/all labels, Light socket

143D100 End panel w/all labels

175B88 Light socket

108D36 Lens (All models except 1240R)

41A5014-3 End panel w/all labels

30B363 Capacitor - 1/2HP

30B387 Capacitor - 1/3HP

30B366 Capacitor - 1/4HP

NOT SHOWN

41A2825

Opener assy. hardware kit (includes

screws not designated by a number

in illustration).

12A373 Capacitor bracket

41A3150 Terminal block w/screws

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ACCESSORIES

1702LM

995LM

Remote Light Control:

Outside Quick Release:

Enables homeowner to turn on a lamp,

television or other appliance from their car

with their garage door opener remote or

from anywhere in their home with an

additional LiftMaster Security✚^®remote.

Required for a garage with NO

access door. Enables homeowner to

open garage door manually from

outside by disengaging trolley.

1-Button Security✚^®Remote Control:

1708LM

8 Foot (2.4 m) Complete Rail:

971LM

972LM

To allow an 8 foot (2.4 m) door to

open fully.

Includes visor clip.

2-Button Security✚^®Remote Control:

10 Foot (3 m) Complete Rail:

1710LM

41A5281

78LM

Includes visor clip.

To allow a 10 foot (3 m) door to open

fully.

3-Button Security✚^®Remote Control:

973LM

Extension Brackets:

Includes visor clip.

(Optional) For safety sensor

installation onto the wall or floor.

4-Button Security✚^®Remote Control:

974LM

970LM

Multi-Function Door

Control Panel:

Includes visor clip.

Provides a Lock Feature which

prevents operation of garage door

opener from portable remotes and a

Light Feature for constant light.

LOCK

3-Button Mini-Remote Control with

Security✚^®:

LIGHT

With key ring and fastening strip.

2 & 3 Door Multi-Function Wall

Control:

902LM/903LM

Ideal for homes with up to three garage

doors. Combine up to three controls

into one wall control panel for a neat

compact appearance. Enhanced

functions include Lock Feature to lock

out outside radio signals while you are

away from home and turn opener lights

on or off from the control panel.

Wireless Keyless Entry with Security✚^®:

976LM

Enables homeowner to operate garage

door opener from outside by entering a

password on a specially designed

keyboard. Also can add a temporary

password for visitors or service persons.

This temporary password can be limited to

a programmable number of hours or entries.

Garage Door Monitor:

915LM

Security for the largest door of your

home!

Model 98LM

Motion Detecting Control Panel:

Tells you if your garage door is open

or closed. Monitors up to 4 garage

doors by adding additional sensor

modules.

Multi-function door control with motion

sensor that automatically turns opener

lights on for 5 minutes when it detects

a person entering the garage. Sensor

can be easily deactivated when

desired.

CLOSED

OPEN

LOCK

LIGHT

Garage Door Monitor Sensor:

916LM

Additional accessory sensor for

homes with multiple garage doors.

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LIFTMASTER SERVICE IS

ON CALL

HOW TO ORDER

REPAIR PARTS

Selling prices will be furnished on request or parts will

be shipped at prevailing prices and you will be billed

accordingly.

OUR LARGE SERVICE ORGANIZATION

SPANS AMERICA

WHEN ORDERING REPAIR PARTS, ALWAYS GIVE

THE FOLLOWING INFORMATION:

INSTALLATION AND SERVICE INFORMATION IS AS

NEAR AS YOUR TELEPHONE SEVEN DAYS A WEEK.

SIMPLY DIAL OUR TOLL FREE NUMBER:

• PART NUMBER

• PART NAME

1-800-528-2817

• MODEL NUMBER

HOURS: (Central Standard Time)

6:00 A.M. TO 7:00 P.M. - Monday through Friday

8:00 A.M. TO 6:00 P.M. - Saturday

ADDRESS ORDERS TO:

THE CHAMBERLAIN GROUP, INC.

Technical Support Group

8:00 A.M. TO 4:30 P.M.- Sunday

6020 S. Country Club Road

Tucson, Arizona 85706

www.liftmaster.com

For professional installation, parts and service,

contact your local LIFTMASTER/CHAMBERLAIN

dealer. Look for him in the Yellow Pages, or call our

Service number for a list of dealers in your area.

SERVICE INFORMATION

TOLL FREE NUMBER:

1-800-528-2817

LIFTMASTER GARAGE DOOR OPENER ONE-YEAR LIMITED WARRANTY

The Chamberlain Group, Inc. (“Seller”) warrants to the first retail purchaser of this product, for the residence in which this product is originally

installed, that it will be free from any defect in materials and/or workmanship for a period of one year from the date of purchase. The product

must be used in complete accordance with Chamberlain’s instructions for installation, operation and care. The proper operation of this

product is dependent on your compliance with the Owner’s Manual instructions regarding installation, operation, maintenance

and testing. Failure to comply strictly with those instructions will void this warranty in its entirety. Please note that the safety

reverse system, in order to operate properly with your garage door, must be adjusted and periodically tested in accordance with

the Owner’s Manual.

If, during the limited warranty period, it appears as though this product contains a defect which is covered by this limited warranty, CALL

OUR TOLL FREE SERVICE NUMBER, BEFORE DISMANTLING THIS PRODUCT, AT (1-800-528-2817). Then send this product, pre-

paid and insured, to our service center for warranty repair. You will be advised of shipping instructions when you call the toll free service

number. Please include a brief description of the problem and a dated proof-of-purchase receipt with any product that is returned for

warranty repair.

Products returned to Seller for warranty repair, which upon receipt by Seller are confirmed to be defective and covered by this limited

warranty, will be repaired or replaced (at Seller’s sole option) at no cost to you and returned pre-paid. Defective parts will be repaired or

replaced with new or factory-rebuilt parts at Seller’s sole option.

THIS LIMITED WARRANTY IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED

WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, OR OTHERWISE, AND OF ANY OTHER

OBLIGATIONS OR LIABILITY ON SELLER’S PART. THIS LIMITED WARRANTY DOES NOT COVER NON-DEFECT DAMAGE,

DAMAGE CAUSED BY IMPROPER INSTALLATION, OPERATION OR CARE (INCLUDING, BUT NOT LIMITED TO ABUSE, MISUSE,

FAILURE TO PROVIDE REASONABLE AND NECESSARY MAINTENANCE, USE OF UNAUTHORIZED PARTS OR ACCESSORIES,

UNAUTHORIZED REPAIRS, OR ANY ALTERATIONS TO THIS PRODUCT), LABOR CHARGES FOR DISMANTLING OR

REINSTALLING A REPAIRED OR REPLACED UNIT, REPLACEMENT OF BATTERIES AND LIGHT BULBS, OR UNITS INSTALLED

FOR NON-RESIDENTIAL USE.THE USE OF UNAUTHORIZED PARTS OR ACCESSORIES WILL VOID THIS LIMITED WARRANTY. If

you have any questions as to whether accessories or replacement parts are authorized, please contact Chamberlain.

THIS LIMITED WARRANTY DOES NOT COVER ANY PROBLEMS WITH, OR RELATING TO, THE GARAGE DOOR OR GARAGE

DOOR HARDWARE, INCLUDING BUT NOT LIMITED TO THE DOOR SPRINGS, DOOR ROLLERS, DOOR ALIGNMENT AND HINGES.

ANY SERVICE CALL THAT DETERMINES THE PROBLEM HAS BEEN CAUSED BY ANY OF THESE ITEMS COULD RESULT IN A

FEE TO YOU.

UNDER NO CIRCUMSTANCES SHALL SELLER BE LIABLE FOR CONSEQUENTIAL, INCIDENTAL OR SPECIAL DAMAGES ARISING

IN CONNECTION WITH THE USE OF, OR INABILITY TO USE, THIS PRODUCT. IN NO EVENT SHALL SELLER’S LIABILITY FOR

BREACH OF WARRANTY, BREACH OF CONTRACT, NEGLIGENCE OR STRICT LIABILITY EXCEED THE COST OF THE PRODUCT

COVERED HEREBY. NO PERSON IS AUTHORIZED TO ASSUME FOR US ANY OTHER LIABILITY IN CONNECTION WITH THE SALE

OF THIS PRODUCT.

Some states do not allow the exclusion or limitation of consequential, incidental or special damages, so the above limitation or exclusion may not

apply to you. This limited warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

LIMITED WARRANTY ON MOTOR

1255R: The motor is warranted to be free from any defect in materials and/or workmanship for

Models 1256R

period of 48 full months (4 years) from the date of purchase.

Models 1246R & 1245R: The motor is warranted to be free from any defect in materials and/or workmanship for a period of 24 full months

(2 years) from the date of purchase.

Model 1240R: The motor is warranted to be free from any defect in materials and/or workmanship for a period of 12 full

months (1 year) from the date of purchase.

114A2217K

Printed in Mexico

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