Chamberlain Garage Door Opener 3245M User Manual

The Chamberlain Group, Inc.

845 Larch Avenue

Elmhurst, Illinois 60126-1196

www.liftmaster.com

GARAGE DOOR OPENER

Models 3245M 1/3 HP

3255M 1/2 HP

For Residential Use Only

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

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.

• 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:

• 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.

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.

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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Planning

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.

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

FINISHED CEILING

SECTIONAL DOOR INSTALLATION

Support bracket &

fastening hardware

is required.

Horizontal and vertical reinforcement

is needed for lightweight garage doors

(fiberglass, steel, aluminum,

See page 12.

Slack in chain tension

door with glass panels, etc.).

See page 19 for details.

is normal when

garage door is closed.

Header Wall

Motor Unit

Extension Spring

Torsion Spring

Wall-

mounted

Door

Control

Vertical Centerline

of Garage Door

Access Door

Safety

Reversing

Sensor

Gap between floor and bottom of door

must not exceed 1/4" (6 mm).

Safety Reversing Sensor

FINISHED CEILING

ONE-PIECE DOOR WITHOUT TRACK

Support bracket

& fastening

hardware is required.

See page 12.

Motor Unit

Slack in chain tension

is normal when

garage door is closed.

Header

Wall

ONE-PIECE DOOR WITH TRACK

Slack in chain tension is normal when

garage door is closed.

Wall-

mounted

Door

Control

Access

Door

Access

Door

Safety

Reversing Sensor

Gap between floor and bottom of

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

Safety

Reversing Sensor

Gap between floor

and bottom of door

Reversing Sensor

Safety

must not exceed 1/4" (6 mm).

Reversing Sensor

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Carton Inventory

Your garage door opener is packaged in two cartons which If anything is missing, carefully check the packing material.

contain the motor unit and all parts illustrated below.

Accessories will depend on the model purchased.

Parts may be stuck in the foam. Hardware for installation

is also listed below.

3245M (1) & 3255M (1)

Sprocket Cover

LOCK

LIGHT

Remote Control

Visor Clip

SECURITY

Multi-Function

Single-Button Remote Control

Door Control Panel

Chain

Styrofoam

2 Conductor Bell Wire

White & White/Red

Motor Unit with Light Lens

One-Piece

Rail

Curved Door

Arm Section

Header Bracket

Trolley

Chain

Pulley Bracket

Door Bracket

Safety Labels

and

The Protector System^®

Straight Door

Arm Section

Literature

(2) Safety Reversing Sensors

(1 Sending Eye and 1 Receiving Eye)

with 2-Conductor White & White/Black

Bell Wire attached

Safety Sensor

Bracket (2)

INSTALLATION HARDWARE

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

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

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

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

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

Clevis Pin 5/16"x1" (1)

Insulated Staples (30)

Ring Fastener (3)

Drywall Anchors (2)

Rail Grease

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

Wing Nut 1/4"-20 (2)

Rope

Nut 5/16"-18 (4)

Lock Washer 5/16" (4)

Handle

Screw 6ABx1-1/4" (2)

Screw 6-32x1" (2)

Self-Threading Screw 1/4"-14x5/8" (2)

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ASSEMBLY STEP 1

Attach the Rail to the Motor Unit

To avoid SERIOUS damage to garage door opener, use ONLY

those bolts/fasteners mounted in the top of the opener.

To avoid installation difficulties, do not run the garage

door opener until instructed to do so.

• Remove the two washered bolts mounted in top of

motor unit.

USE ONLY THIS

TYPE AND SIZE

• Position rail at a 45˚ angle to opener so one hole in rail

and motor unit line up.

BOLT

Washered Bolt

• Thread one of the washered bolts part way in.

5/16"-18x1/2"

Styrofoam

Use only these bolts! Use of any other bolts will cause

serious damage to door opener.

Rail

Hole

• 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

To avoid possible SERIOUS INJURY to fingers from moving

garage door opener:

• ALWAYS keep hand clear of sprocket while operating opener.

• Securely attach sprocket cover BEFORE operating.

• 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!

Washered Bolts

• Tighten both bolts securely through the rail into the

motor unit as shown.

5/16"-18x1/2"

Sprocket

• 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.

USE ONLY THIS

TYPE AND SIZE

BOLT

Sprocket Cover

Back Tab Slot

Front Tab Slot

Mounting

Plate

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Figure 1

ASSEMBLY STEP 3

Tighten the Chain

Lock

Washer

Outer Nut

Inner Nut

To Tighten Outer Nut

• Spin the inner nut and lock washer down the trolley

threaded shaft, away from the trolley.

To Tighten

Inner Nut

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

shown (Figure 1).

• 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.

Trolley

Figure 2

Sprocket noise can result if chain is too loose.

Chain

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 in Figure 2 when the door is

open, do not re-adjust the chain.

1/2" (13 mm)

NOTE: During future maintenance, ALWAYS pull the

emergency release handle to disconnect trolley before

adjusting chain. You may notice loosening of chain after

Adjustment Step 3 (Test the Safety Reversal System).

Check for proper tension and readjust chain if necessary.

Then repeat Adjustment Step 3.

Base of Rail

Mid Length of Rail

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 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.

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

8. NEVER wear watches, rings or loose clothing while

installing or servicing opener. They could be caught in

garage door or opener mechanisms.

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.

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.

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INSTALLATION STEP 1

Determine the Header Bracket Location

Unfinished

Ceiling

OPTIONAL

CEILING

MOUNT

FOR

HEADER

BRACKET

Header Wall

2x4

To prevent possible SERIOUS INJURY or DEATH:

Vertical Centerline

of Garage Door

• 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.

2x4

Structural

Supports

• Concrete anchors MUST be used if mounting header bracket

or 2x4 into masonry.

• 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.

Level

(optional)

Installation procedures vary according to garage door types.

Follow the instructions which apply to your door.

1. Close the door and mark the inside vertical centerline of

the garage door.

2. Extend the line onto the header wall above the door.

You can fasten the header bracket within 4 feet

(1.22 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 9) when

clearance is minimal. (It may be mounted on the wall

upside down if necessary, to gain approximately 1/2"

(1 cm)).

Header Wall

2" (5 cm)

Track

Header Wall

2" (5 cm)

Highest Point

of Travel

Highest Point

of Travel

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 9.

Door

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

Draw an intersecting horizontal line on the header wall

above the high point:

One-piece door with horizontal track

Sectional door with curved track

• 2" (5 cm) above the high point for sectional door and

one-piece door with track.

• 8" (20 cm) above the high point for one-piece door

without track.

Header Wall

8" (20 cm)

This height will provide travel clearance for the top edge

of the door.

Header Wall

8" (20 cm)

NOTE: If the total number of inches exceeds the height

available in your garage, use the maximum height

possible, or refer to page 9 for ceiling installation.

Highest

Door

Point

of Travel

Door

of Travel

Jamb

Hardware

Pivot

One-piece door without track:

pivot hardware

One-piece door without track:

jamb 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.

WALL HEADER BRACKET INSTALLATION

Optional

• 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).

Wall Mounting Holes

Vertical

Centerline of

Garage Door

• 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.

Header

Wall

Lag Screws

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

2x4

Header

Bracket

Structural

Support

Door Spring

HARDWARE SHOWN ACTUAL SIZE

Horizontal

Line

Garage

Door

Highest Point of

Vertical

Garage Door Travel

Lag Screw

Centerline of

Garage Door

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

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

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

bracket securely to a structural support with the

hardware provided.

Header

Bracket

of Garage Door

6" (15 cm)

Maximum

Door

Lag Screws

Spring

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

of Garage 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

Rail

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

Position the Opener

To prevent damage to garage door, rest garage door opener

rail on 2x4 placed on top section of door.

Follow instructions which apply to your door type as

illustrated.

SECTIONAL DOOR OR ONE-PIECE DOOR WITH

TRACK

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

distance.

Rail

• Remove foam packaging.

• Raise the opener onto a stepladder. You will need help

at this point if the ladder is not tall enough.

2x4 is used to determine

Door

the correct mounting height

from ceiling.

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

the top section beneath the rail.

• 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

Header

Bracket

ONE-PIECE DOOR WITHOUT TRACK

A 2x4 on its side is convenient for setting an ideal door-to-

rail distance.

Top of Door

• Remove foam packaging.

2x4 is used to determine

the correct mounting height

from ceiling.

• 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 on its side

on the top section of the door beneath the rail.

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

motor unit. Do not position the opener more than 4"

(10 cm) above this point.

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INSTALLATION STEP 5

Hang the Opener

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.

Three representative installations are shown. Yours may

be different. Hanging brackets should be angled (Figure 1)

to provide rigid support. On finished ceilings (Figure 2 and

Figure 3), 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

Measure

Distance

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

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

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

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

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

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).

Figure 2

Hidden

Support

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

hits the rail, raise the header bracket.

Bracket

(Not Provided)

8. Grease the top and underside of the rail surface where

the trolley slides with rail grease.

FINISHED CEILING

Lag Screws

NOTE: DO NOT connect power to opener at this time.

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

(Not Provided)

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

HARDWARE SHOWN ACTUAL SIZE

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

Figure 3

Lag Screws

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

FINISHED CEILING

Hex Bolt

5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

(Not Provided)

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

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INSTALLATION STEP 6

Install the Door Control

To prevent possible SERIOUS INJURY or DEATH from

electrocution:

Locate 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 moving parts of the door and door

hardware. The installation surface must be smooth and

flat. If installing into drywall (Figure 1), drill 5/32" holes and

use anchors provided. For pre-wired installations (as in

new home construction), it may be mounted to a single

gang box (Figure 2). NOTE: After installation, a green

indicator light behind the cover will indicate proper

connection. If not lit, the Lock and Light features will not

function (reverse wires to correct).

• 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 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.

1. Strip 7/16" (11 mm) of insulation from one end of bell

wire and connect to the two screw terminals on back of

door control by color: white wire to 2 and white/red wire

to the 1 (Figure 3).

2. Remove cover by gently prying at slot in top of the

cover with a small flat head screwdriver (Figure 4).

Fasten with 6ABx1-1/4" self-tapping screws (drywall

installation) or 6-32x1" machine screws (into gang box)

as follows:

HARDWARE SHOWN ACTUAL SIZE

Insulated

Staples

Screw 6ABx1-1/4"

(std installation)

• Drill and install bottom screw, allowing 1/8" (3 mm) to

protrude above wall surface.

Screw 6-32x1"

(pre-wired)

• Position bottom of door control on screw head and

slide down to secure. Adjust screw for snug fit.

Drywall Anchors

• Install top screw with care to avoid cracking plastic

housing. Do not overtighten.

PRE-WIRED

STANDARD

Figure 1

Figure 2

INSTALLATION

• Insert bottom tabs and snap on cover.

NOTE: The push bar may stick if the door control is not

mounted on a smooth surface. If a click is not heard when

pressing the push bar, loosen the two mounting screws or

relocate the door control to a smoother surface.

LOCK

LIGH

LOCK

LIGH

3. (Standard installation only) Run bell wire up wall and

across ceiling to motor unit. Use insulated staples to

secure wire in several places. Do not pierce wire with a

staple, creating a short or open circuit.

To Replace

24 Volt

Insert Bottom Tabs First

To Replace

Bell Wire

Insert Bottom Tabs First

Figure 4 REMOVE COVER

Figure 3 MULTI-FUNCTION

4. Strip 7/16" (11 mm) of insulation from end of bell wire.

Connect bell wire to the quick-connect terminals as

follows: white to white and white/red to red (Figure 5).

DOOR CONTROL (BACK)

Slot

Top Mounting Hole

Terminal

NOTE: When connecting multiple door controls to the

opener, twist same color wires together. Insert wires into

quick-connect holes: white to white and red/white to red.

Screws

LOCK

Bell Wire

Bottom Mounting Hole

LIGH

5. Use tacks or staples to permanently attach entrapment

warning label to wall near door control, and manual

release/safety reverse test label in a prominent location

on inside of garage door.

Figure 5

Door Control

Connections

To release or insert wire,

push in tab with screwdriver tip

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 16.

Red White Grey

7/16" (11 mm)

Strip wire 7/16" (11 mm)

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INSTALLATION STEP 7

Install the Light

To prevent possible OVERHEATING of the endpanel or light

socket:

• DO NOT use short neck or specialty light bulbs.

• DO NOT use halogen bulbs. Use ONLY incandescent.

To prevent damage to the opener:

• DO NOT use bulbs larger than 100W.

• ONLY use A19 size bulbs.

• Press the release tabs on both sides of lens. Gently

rotate lens back and downward until the lens hinge is in

the fully open position. Do not remove the lens.

• Install up to a 100 watt maximum light bulb in each

socket. Light bulb size should be A19, standard neck

only. The light will turn ON and remain lit for

approximately 4-1/2 minutes when power is connected.

Then the lights will turn OFF.

• Reverse the procedure to close the lens.

100 Watt (Max)

• Use A19, standard neck garage door opener bulbs for

replacement.

Standard Light Bulb

NOTE: Use only standard light bulbs. The use of short

neck or speciality light bulbs may overheat the endpanel

or light socket.

Release Tab

Lens Hinge

INSTALLATION STEP 8

Attach the Emergency Release Rope

and Handle

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 cm) 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. Ensure that the rope and handle clear

the tops of all vehicles to avoid entanglement. 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

TICE

Emergency

Release Handle

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INSTALLATION STEP 9

Electrical Requirements

To prevent possible SERIOUS INJURY or DEATH from

electrocution or fire:

• 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 avoid installation difficulties, do not run the opener

at this time.

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

If permanent wiring is required by your local code,

refer to the following procedure.

Ground Tab

Green

To make a permanent connection through the 7/8" hole in

the top of the motor unit:

Ground Screw

Black

Ground Wire

Wire

• Remove the motor unit cover screws and set the cover

aside.

• Remove the attached 3-prong cord.

• 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.

Black Wire

White Wire

• Reinstall the cover.

To avoid installation difficulties, do not run the opener

at this time.

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INSTALLATION STEP 10

Install The Protector System

Be sure power is not connected to the garage door opener

BEFORE installing the safety reversing sensor.

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.

• Install the safety reversing sensor so beam is NO HIGHER

than 6" (15 cm) above garage floor.

The safety reversing sensor must be connected and

aligned correctly before the garage door opener will

move in the down direction.

IMPORTANT INFORMATION ABOUT THE SAFETY

REVERSING SENSOR

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.

Safety Reversing Sensor

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)

Inside

• 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

Fasten Wood Block to Wall with

Figure 2

Lag Screws (Not Provided)

Indicator

Sensor

Light

• If additional depth is needed, an extension bracket (see

Accessories) or wood blocks can be used.

Bracket

• 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

Inside

Extension

arage

Floor installation (Figure 4):

Bracket

(See Accessories)

• 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.

(Provided with

Extension Bracket)

• Carefully measure and place right and left assemblies at

the same distance out from the wall. Be sure all door

hardware obstructions are cleared.

• Fasten to the floor with concrete anchors as shown.

Sensor

Bracket

Indicator

(Provided with

Extension

Bracket)

Light

Lens

FLOOR MOUNT (RIGHT SIDE)

Figure 4

HARDWARE SHOWN ACTUAL SIZE

Attach with

Concrete Anchors

(Not Provided)

Inside

arage

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 REVERSING

SENSORS

Figure 5

Wing Nut

1/4"-20

• 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).

Carriage Bolt

1/4"-20x1/2"

Lens

• Finger tighten the wing nuts.

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

insulated staples to secure wire to wall and ceiling.

TROUBLESHOOTING THE SAFETY REVERSING

SENSORS

• Strip 7/16" (11 mm) of insulation from each set of wires.

Separate white and white/black wires sufficiently to

connect to the opener quick-connect terminals. Twist

like colored wires together. Insert wires into

quick-connect holes: white to white and white/black to

grey (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 opener connections.

ALIGNING THE SAFETY REVERSING SENSORS

• Incorrect wiring between sensors and opener.

• A broken wire.

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

sending and receiving eyes will glow steadily if wiring

connections and alignment are correct.

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

• Loosen the sending eye wing nut and readjust, aiming

sensor.

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. See page 16.

• 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 Quick-Connect Terminals

Figure 6

Finished

Ceiling

Bell Wire

1. Strip wire 7/16"

(11 mm)

Bell Wire

7/16" (11 mm)

2. Twist like colored

wires together

3. To release or insert

wire, push in tab with

screwdriver tip

Red

Grey

White

Quick-Connect Terminals

Safety Reversing Sensor

Invisible Light Beam

Protection Area

Safety Reversing Sensor

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INSTALLATION STEP 11

Fasten the Door Bracket

Fiberglass, aluminum or lightweight steel garage doors WILL

REQUIRE reinforcement BEFORE installation of door bracket.

Contact your door manufacturer for reinforcement kit.

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

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.

Bracket

Location

HORIZONTAL AND VERTICAL

REINFORCEMENT IS NEEDED

FOR LIGHTWEIGHT GARAGE

DOORS (FIBERGLASS,

ALUMINUM, STEEL, DOORS

WITH GLASS PANEL, ETC.).

(NOT PROVIDED)

SECTIONAL DOORS

Vertical

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.

Centerline

of Garage

Door

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.

Figure 1

Vertical

Reinforcement

(Not Provided)

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

your door’s construction:

Vertical

Reinforcement

Centerline

of Garage Door

Metal or light weight doors using a vertical angle iron

brace between the door panel support and the door

bracket:

Vertical

Bolt

Centerline

5/16"-18x2"

of Garage Door

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

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

(Figure 2A).

Door

Bracket

Lock Washer

Door

5/16"

Nut

Bracket

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

(not provided) (Figure 2B).

5/16"-18

Self-Threading

Screw

1/4"-14x5/8"

Figure 2B

Metal, insulated or light weight factory reinforced

doors:

Figure 2A

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

using the self-threading screws (Figure 3).

Inside Edge

(Not Provided)

of Door or

Reinforcement Board

Wood Doors:

Bolt

5/16"x2"

• 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

NOTE: The 1/4"-14x5/8" self-threading screws are not

intended for use on wood doors.

of Garage Door

Vertical

Centerline

of Garage

Door

HARDWARE

SHOWN

ACTUAL SIZE

Self-Threading

Screw

Figure 4

1/4"-14x5/8"

Self-Threading

Screw

Figure 3

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

Top of Door

Header Wall

Finished Ceiling

2x4 Support

Bracket

(Inside

Garage)

Top Edge

of Door

Header

Bracket

Optional

Placement

Door

Bracket

METAL DOOR

Optional

HORIZONTAL AND VERTICAL

Placement

REINFORCEMENT IS NEEDED

Nut

of Door

Lock

FOR LIGHTWEIGHT GARAGE

Bracket

5/16"-18

Washer

DOORS (FIBERGLASS,

5/16"

ALUMINUM, STEEL, DOORS

WITH GLASS PANEL, ETC.).

Top of Door

Door

(NOT PROVIDED)

Vertical

(Inside

Bracket

Centerline of

Garage Door

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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INSTALLATION STEP 12

Connect Door Arm to Trolley

Inner Trolley

Outer Trolley

Follow instructions which apply to your door type as

illustrated below and on the following page.

SECTIONAL DOORS ONLY

Clevis Pin

5/16"x1"

Ring

• 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.

Fastener

Emergency

Release

Handle

Door

• Figure 1:

Bracket

Straight

– Fasten straight door arm section to outer trolley with

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

ring fastener.

Door Arm

Curved

Door Arm

Clevis Pin

– Fasten curved section to the door bracket in the same

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

5/16"x1-1/4"

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" (15 cm) from the

solid end. Reconnect to trolley with cut end down as

shown.

Lock

Washers

5/16"

– Bring arm sections together.

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

lock washers and nuts.

Nuts

5/16"-18

• Pull the emergency release handle toward the opener at

a 45° angle so that the trolley release arm is horizontal.

Proceed to Adjustment Step 1, page 23. Trolley will

re-engage automatically when opener is operated.

Bolts

5/16"-18x7/8"

Door Bracket

Figure 2

HARDWARE SHOWN ACTUAL SIZE

Lock

Washers

5/16"

Nut 5/16"-18

Lock Washer 5/16" Ring Fastener

Clevis Pin

Nuts

5/16"-18

Hex Bolt

Clevis Pin

5/16"x1" (Trolley)

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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ALL ONE-PIECE DOORS

Door

Ring

Bracket

1. Assemble the door arm, Figure 4:

Fastener

Nuts

Lock

• Fasten the straight and curved door arm sections

together to the longest possible length (with a 2 or 3

hole overlap).

5/16"-18

Washers

5/16"

Clevis Pin

Straight

Arm

5/16"x1-1/4"

• With the door closed, connect the straight door arm

section to the door bracket with the 5/16"x1-1/4" clevis

pin.

Bolts

Curved

5/16"-18x7/8

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 23. 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

3. Connect the door arm to the trolley:

- Turn the UP limit adjustment screw counter-clockwise

4 turns.

• 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

4 complete turns.

Figure 5

Inner Trolley

Outer Trolley

Door Arm

Connector Hole

Door Arm

Emergency Release Handle

Closed

Door

Inner Trolley

Outer Trolley

Door Arm

Correct Angle

Door with

Backward Slant (Incorrect)

Open Door

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ADJUSTMENT STEP 1

Adjust the UP and DOWN Travel Limits

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.

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.

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

control may also need adjustment.

• Does the door open and close completely?

• 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"

high (3.8 cm) 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 25).

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.

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. 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.

Cover Protection

Bolt

2-4"

(5-10 cm)

HOW AND WHEN TO ADJUST THE LIMITS

• If the door does not open completely but opens at

least five feet (1.5 m):

Increase up travel. Turn the UP limit adjustment screw

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

Left Side Panel

Limit Adjustment Screws

NOTE: To prevent the trolley from hitting the cover

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

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

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

Adjustment Label

Adjust the UP (open) force as explained in Adjustment

Step 2.

• If the door does not close completely:

• If the door reverses when closing and there is no

visible interference to travel cycle:

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 18.

If door still won't close completely and the trolley bumps

into the pulley bracket (page 4), try lengthening the door

arm (page 21) 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

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.

• 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"

high (3.8 cm) object (or 2x4 laid flat) on floor.

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.

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

Force

1. Test the DOWN (close) 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 25. 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.

Back Panel

• 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 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

Antenna

• 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.

Open Force

Close Force

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ADJUSTMENT STEP 3

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

• Safety reversal system MUST be tested every month.

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

control may also need adjustment.

• 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.

• After ANY adjustments are made, the safety reversal system

MUST be tested. Door MUST reverse on contact with 1-1/2"

high (3.8 cm) 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 21.

• 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.

• If the unit continues to fail the Safety Reverse Test, call

for a trained door systems technician.

IMPORTANT SAFETY CHECK:

Test the Safety Reverse System 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.

ADJUSTMENT STEP 4

Test The Protector System

Without a properly installed safety reversing sensor, persons

(particularly small children) could be SERIOUSLY INJURED or

KILLED by a closing garage door.

• 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 (2.5 cm), 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.

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

rope knot becomes untied, you could fall.

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.

5. NO ONE SHOULD GO UNDER A STOPPED, PARTIALLY

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.

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" high

(3.8 cm) high object (or a 2x4 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.

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.

7. NEVER use emergency release handle unless garage

doorway is clear of persons and obstructions.

14. ALWAYS disconnect electric power to garage door opener

BEFORE making any repairs or removing covers.

15.

SAVE THESE INSTRUCTIONS.

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.

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.

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.

The opener lights 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.

Activate your opener with any of the following:

• The hand-held Remote Control: Hold the large push

button down until the door starts to move.

• The wall-mounted Door Control: Hold the push button or

They will turn off automatically after 4-1/2 minutes or

provide constant light when the Light feature on the Multi-

Function Door Control is activated. Bulb size is A19. Bulb

power is 100 watts maximum.

bar down until the door starts to move.

• The Keyless Entry (See Accessories): If provided with

your garage door opener, it must be programmed before

use. See Programming.

Security✚ light feature: Lights will also turn on when

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.

2. If closing, the door will reverse.

someone walks through the open garage door. With a

Multi-Function Door Control, this feature may be turned off

as follows: With the opener lights off, press and hold the

light button for 10 seconds, until the light goes on, then off

again. To restore this feature, start with the opener lights

on, then press and hold the light button for 10 seconds

until the light goes off, then on again.

3. If opening, the door will stop.

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

it will close.

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

obstruction interrupts the sensor beam, the opener lights

will blink for five seconds.

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Using the Wall-Mounted

Door Control

To Open the Door Manually

THE MULTI-FUNCTION DOOR CONTROL

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.

Press the push bar 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.

Push

Button

Lock

Button

LOCK

Light

Light feature

LIGHT

Button

Press the Light button to turn the opener

light on or off. It will not control the opener lights when the

door is in motion. If you turn it on and then activate the

opener, the light will remain on for 4-1/2 minutes. Press

again to turn it off sooner. The 4-1/2 minute interval can be

changed to 1-1/2, 2-1/2, or 3-1/2 minutes as follows: Press

and hold the Lock button until the light blinks (about 10

seconds). A single blink indicates that the timer is reset to

1-1/2 minutes. Repeat the procedure and the light will blink

twice, resetting the timer to 2-1/2 minutes. Repeat again

for a 3-1/2 minute interval, etc., up to a maximum of four

blinks and 4-1/2 minutes.

The door should be fully closed if

possible. Pull down on the

emergency release handle and lift

the door manually. To reconnect

the door to the opener, press the

door control push bar.

Trolley

Release

Arm

Emergency

Release

Handle

Lock feature

(Pull Down)

Designed to prevent operation of the door from hand-held

remote controls. However, the door will open and close

from the Door Control, the Outside Keylock and the

Keyless Entry Accessories.

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 disengage the lockout feature,

pull the handle straight down. The

trolley will reconnect on the next

UP or DOWN operation, either

manually or by using the door

control or remote.

Trolley

Release

Arm

To activate, press and hold the Lock button for 2 seconds.

The push bar light will flash as long as the Lock feature is

on.

To turn off, press and hold the Lock button again for

2 seconds.The push bar light will stop flashing. The Lock

feature will also turn off whenever the “Learn” button on

the motor unit panel is activated.

Emergency

Release Handle

(Down and Back)

LOCKOUT POSITION

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THE REMOTE CONTROL BATTERY

CARE OF YOUR OPENER

LIMIT AND FORCE ADJUSTMENTS:

Weather conditions may cause

To prevent possible SERIOUS INJURY or DEATH:

• NEVER allow small children near batteries.

• If battery is swallowed, immediately notify doctor.

To reduce risk of fire, explosion or chemical burn:

• Replace ONLY with 3V2032 coin batteries.

FORCE CONTROLS

some minor changes in door

operation requiring some re-

adjustments, particularly during

the first year of operation.

Pages 23 and 24 refer to the limit

and force adjustments. Only a

screwdriver is required. Follow

the instructions carefully.

• Do NOT recharge, disassemble, heat above 100°C (212°F)

or incinerate.

LIMIT CONTROLS

Repeat the safety reverse test

(Adjustment Step 3, page 25)

after any adjustment of limits or force.

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 (+)

MAINTENANCE SCHEDULE

Once a Month

Dispose of old battery properly.

• Manually operate door. If it is unbalanced or binding, call

a trained door systems technician.

Replace the battery with only

3V2032 coin cell batteries.

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

limits and/or force if necessary (see pages 23 and 24).

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

• Repeat the safety reverse test. Make any necessary

adjustments (see Adjustment Step 3).

Twice a Year

• Check chain tension. Disconnect trolley first. Adjust if

necessary (see page 7).

Once a Year

• Oil door rollers, bearings and hinges. The opener does

not require additional lubrication. Do not grease the door

tracks.

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HAVING A PROBLEM?

1. My door will not close and the light bulbs blink on

my motor unit: The safety reversing sensor must be

connected and aligned correctly before the garage door

opener will move in the down direction.

Bell Wire

• Verify the safety sensors are properly installed,

aligned and free of any obstructions. Refer to

Installation Step 10: Install The Protector System^®.

• Check diagnostic LED for flashes on the motor unit

then refer to the Diagnostic Chart on the following

page.

"Learn"

Button

LED or

Diagnostic

LED

2. My remotes will not activate the door:

Safety Reversing Sensor

• Verify your Door Control is not blinking. If it is blinking,

deactivate the Lock Mode following the instructions for

Using the Wall-Mounted Door Control.

Receiving Eye Safety Reversing

Sensor (Green Indicator Light)

Sending Eye Safety Reversing

Sensor (Amber Indicator Light)

• Reprogram remotes following the programming

instructions. Refer to Programming.

• If remote will still not activate your door, check

diagnostic LED for flashes on motor unit then refer to

Diagnostic Chart on the following page.

3. My door reverses for no apparent reason: Repeat

safety reverse test after adjustments to force or travel

limits. The need for occasional adjustment for the force

and limit settings is normal. Weather conditions in

particular can affect door travel.

6. My motor unit hums briefly:

• First verify that the trolley is against the stop bolt.

• Release the door from the opener by pulling the

Emergency Release Rope.

• Manually bring the door to a closed position.

• Manually check door for balance or any binding

problems.

• Loosen the chain by adjusting the outer nut 4 to 5

turns. This relieves the tension.

• Refer to Adjustment Step 2, Adjust the Force.

• Run the motor unit from the remote control or door

control. The trolley should travel towards the door and

stop. If the trolley re-engages with the door, pull the

Emergency Release Rope to disengage.

4. My door reverses for no apparent reason after fully

closing and touching the floor: Repeat safety reverse

test after adjustments to force or travel limits. The need

for occasional adjustment for the force and limit settings

is normal. Weather conditions in particular can affect

door travel.

• Decrease the UP travel by turning the UP Travel

adjustment screw 2 full turns away from the arrow.

• Re-tighten the outer nut so the chain is a 1/2" (13 mm)

above the base of the rail. (When the door is

reconnected and closed, the chain will sag. This is

normal.)

• Refer to Adjustment Step 1, Adjust the UP and DOWN

Travel Limits. Decrease down travel by turning down

limit adjustment screw clockwise.

• If the trolley does not move away from the bolt, repeat

the steps above.

5. My lights will not turn off when door is open:

• The garage door opener is equipped with a security

light feature. This feature activates the light on when

the safety sensor beam has been obstructed. Refer to

Operation section; Using the Wall Mounted Door

Control, Light Feature.

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Bell Wire

Diagnostics

Located On

Motor Unit

Installed

Safety Reversing

Sensor

LED or

Diagnostic

LED

Your garage door opener is programmed with self-diagnostic

capabilities. The “Learn” button/diagnostic LED will flash a

number of times then pause signifying it has found a potential

issue. Consult Diagnostic Chart below.

"Learn"

Button

Safety Reversing Sensor

Diagnostic Chart

Symptom: One or both of the Indicator lights on the safety sensors do not

glow steady.

• Inspect sensor wires for a short (staple in wire), correct wiring polarity (black/white

wires reversed), broken or disconnected wires, replace/attach as needed.

• Disconnect all wires from back of motor unit.

• Remove sensors from brackets and shorten sensor wires to 1-2 ft. (30-60 cm)

from back each of sensor.

• Reattach sending eye to motor unit using shortened wires. If sending eye indicator

light glows steadily, attach the receiving eye.

• Align sensors, if the indicator lights glow replace the wires for the sensors. If the

sensor indicator lights do not light, replace the safety sensors.

1 FLASH

Safety Reversing Sensors

wire open (broken or

disconnected).

2 FLASHES

Safety Reversing

Sensors wire shorted or

black/white wire

reversed.

Symptom: LED is not lit on door control.

• Inspect door control/wires for a short (staple in wire), replace as needed.

• Disconnect wires at door control, touch wires together. If motor unit activates,

replace door control.

3 FLASHES

Door control or wire

shorted.

• If motor unit does not activate, disconnect door control wires from motor unit.

Momentarily short across red and white terminals with jumper wire. If motor unit

activates, replace door control wires.

4 FLASHES

Symptom: Sending indicator light glows steadily, receiving indicator light is

dim or flashing.

• Realign receiving eye sensor, clean lens and secure brackets.

• Verify door track is firmly secured to wall and does not move.

Safety Reversing Sensors

slightly misaligned

(dim or flashing LED).

Symptom: Motor has over heated; the motor unit does not operate or trolley

is stuck on stop bolt = Motor unit hums briefly; RPM Sensor =

Short travel 6-8" (15-20 cm).

• Unplug unit to reset. Try to operate motor unit, check diagnostic code.

• If it is still flashing 5 times and motor unit moves 6-8" (15-20 cm), replace RPM

sensor.

5 FLASHES

Motor overheated or

possible RPM sensor

failure. Unplug to reset.

• If motor unit doesn’t operate, motor unit is overheated. Wait 30 minutes and retry.

If motor unit still will not operate replace logic board.

Symptom: Motor unit doesn’t operate.

• Replace logic board because motor rarely fails.

6 FLASHES

Motor Circuit Failure.

Replace Receiver

Logic Board.

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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 a 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 Control.

2. Within 30 seconds, press and hold the

button on the hand-held remote* that

you wish to operate your garage door.

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 provided with your garage door opener, the large button

is factory programmed to operate it. Additional buttons on

any Security✚^®3-Button

To deactivate any unwanted remote, first

erase all codes:

remote or compact remote

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.

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

NOTE: This method requires two people if the Keyless

Entry is already mounted outside the garage.

1. Press and release the “learn” button

on motor unit. The learn indicator light

will glow steadily for 30 seconds.

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 installed, two clicks

will be heard.

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

hold the # button. The opener light will blink twice. Release

the # button.

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

press Enter. The opener light will blink four times.

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

press Enter.

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

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

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

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

The motor unit lights will blink once when the PIN has been

learned. 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:

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.

One Button Close: Opener can be closed by pressing only the ENTER button if the one button close feature has been

activated. This feature has been activated at the factory. To activate or deactivate this feature press and hold buttons 1 and 9

for 10 seconds. The keypad will blink twice when the one button close is active. The keypad will blink four times when one

button close is deactivated.

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REPAIR PARTS

Rail Assembly Parts

KEY PART

NO. NO.

DESCRIPTION

4A1008

41A4813

41A3489

1707LM

1708LM

1710LM

41D3484

83A11-2

Master link kit

Chain pulley bracket

Complete trolley assembly

One-piece rail 7' (2.1 m)

One-piece rail 8' (2.4 m)

One-piece rail 10' (3 m)

Full chain assembly

Rail grease

Installation Parts

LOCK

LIGHT

KEY PART

NO. NO.

DESCRIPTION

41A5273-1

371LM

Multi-function door control panel

1 Button remote control

10A20

3V2032 Lithium battery

29B137

41A2828

Remote control visor clip

TICE

Emergency release rope and handle

assembly

41B4494-1

41A4353

41A5047

178B35

2-Conductor bell wire, white and white/red

Header bracket with clevis pin and fastener

Door bracket with clevis pin and fastener

Curved door arm section

178B34

Straight door arm section

41A5034

Safety sensor kit (receiving and sending

eyes) with 3' (.9 m) 2-conductor bell wire

41A5266-1

Safety sensor brackets (2)

NOT SHOWN

41A2770-6

114A3588

Installation hardware bag

(includes hardware listed on page 5)

Owner’s manual

114A3588SP Owner’s manual – Spanish

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Motor Unit Assembly Parts

(Down)

Contact

LIMIT SWITCH ASSY.

Brown

Wire

D N

Grey

Wire

U P

Drive

Gear

Center Limit

Contact

(Up)

Yellow

Contact

Wire

KEY PART

NO. NO.

KEY PART

NO. NO.

DESCRIPTION

31D380

Sprocket cover

41A5525-24

Cover

41C4220A

Gear and sprocket assembly

Complete with: Spring washer,

thrust washer, retaining ring,

bearing plate, roll pins (2), drive

gear and worm gear, helical gear 16

with retainer and grease

41A2818

Limit switch drive and retainer

Limit switch assembly

Interrupter cup assembly

RPM sensor assembly

41D3452

41A2822-1

41C4398A

41AC050-1M

Receiver logic board assy.

Complete with: Logic board

and end panel with all labels

41A2817

Drive/worm gear kit with grease,

roll pins (2)

41B4245

41A5484-1

4A1344

Line cord

41C5498

41C5497

Low voltage wire harness assy.

High voltage wire harness assy.

End panel with all labels

Light socket

Lens

41D181

End panel with all labels

NOT SHOWN

Motor shaft bearing kit

Opener assembly hardware kit

(includes screws not designated

by a number in illustration)

108D79

41A2826

41A2825

30B532

30B533

Capacitor - 1/2 HP

Capacitor - 1/3 HP

12A373

Capacitor bracket

41A3150

41D3058

Terminal block with screws

Universal replacement motor

and bracket assembly

Complete with: Motor, worm,

bracket, bearing assembly and

RPM sensor

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ACCESSORIES

SECURITY✚^®3-Button Remote

Control:

1702LM

Outside Quick Release:

373P

Required for a garage with NO access

door. Enables homeowner to open

garage door manually from outside by

disengaging trolley.

Includes visor clip.

Extension Brackets:

SECURITY✚^®4-Button Remote

Control:

41A5281

374LM

(Optional) For safety sensor installation

onto the wall or floor.

Includes visor clip.

SECURITY✚^®Keyless Entry:

370LM

377LM

SECURITY✚^®3-Button Mini Remote

Control:

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.

With key ring and fastening strip.

378LM

Wireless Door Control:

Push bar, light feature and auxiliary

button. Includes battery.

Garage Door Monitor:

915LM

Security for the largest door of your

home!

975LM

Laser Park Assist:

Tells you if your garage door is open or

closed. Monitors up to 4 garage doors

by adding additional sensor modules.

CLOSED

Laser enables homeowners to precisely

park vehicles in the garage.

OPEN

395LM

Remote Light Control:

Enables homeowner to turn on a lamp,

television or other appliance from car,

bedside, or anywhere in the home with a

remote.

990LM

Surge Protector:

The Garage Door Opener Surge

Protector is designed to protect

LiftMaster^®garage door openers against

damage from lightning and power

surges.

Designer Burled Walnut 3-Button

373W

Remote Control with Security✚^®:

Includes visor clip.

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HOW TO ORDER

REPAIR PARTS

LIFTMASTER SERVICE IS

ON CALL

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.

• PART NUMBER

• PART NAME

SIMPLY DIAL OUR TOLL FREE NUMBER:

1-800-528-9131

• MODEL NUMBER

ADDRESS ORDERS TO:

THE CHAMBERLAIN GROUP, INC.

Technical Support Group

www.liftmaster.com

6020 S. Country Club Road

Tucson, Arizona 85706

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:

1-800-528-9131

LIFTMASTER ONE-YEAR LIMITED WARRANTY

FOUR-YEAR MOTOR 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 is free from defect in materials and/or workmanship for a period of one year from the date of purchase [and that the motor is free

from defect in materials and/or workmanship for a period of four years from the date of purchase]. The proper operation of this product is

dependent on your compliance with the instructions regarding installation, operation, maintenance and testing. Failure to comply strictly with those

instructions will void this limited warranty in its entirety.

If, during the limited warranty period, this product appears to contain a defect covered by this limited warranty, call 1-800-528-9131, toll free,

before dismantling this product. 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. Please include a brief description of the problem and a dated proof-of-purchase receipt with any product

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.

ALL IMPLIED WARRANTIES FOR THE PRODUCT, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF

MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE ONE-YEAR LIMITED

WARRANTY PERIOD SET FORTH ABOVE [EXCEPT THE IMPLIED WARRANTIES WITH RESPECT TO THE MOTOR, WHICH ARE LIMITED

IN DURATION TO THE FOUR-YEAR LIMITED WARRANTY PERIOD FOR THE MOTOR], AND NO IMPLIED WARRANTIES WILL EXIST OR

APPLY AFTER SUCH PERIOD. Some States do not allow limitations on how long an implied warranty lasts, so the above limitation may

not apply to you. 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, UNAUTHORIZED REPAIRS OR ANY ALTERATIONS TO THIS PRODUCT), LABOR CHARGES FOR

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

NON-RESIDENTIAL USE.

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 OR HINGES. THIS LIMITED

WARRANTY ALSO DOES NOT COVER ANY PROBLEMS CAUSED BY INTERFERENCE. 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 USE, 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.

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