1F80-361
ProgrammableElectronicDigitalThermostat
INSTALLATION AND
OPERATIONINSTRUCTIONS
Operator: Save these instructions for future use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY
BEFOREINSTALLINGOROPERATINGTHISCONTROLCOULDCAUSE
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
DESCRIPTION
• Temperature override until next program period
• Manual program override (HOLD temperature)
• Temporary HOLD
Your new White-Rodgers 5-Day/1-Day/1-Day Digital Thermo-
stat uses the technology of a solid-state microcomputer to
provide precise time/temperature control. This thermostat offers
you the flexibility to design heating and cooling programs that fit
your needs.
• °F/°C convertibility
• Temperature range 45° to 90°F
• RC, RH, C, W, Y, G , O and B terminals
• Optional C terminal (Dual Power option)
Features:
• Separate 5-day (weekday), 1-day (Sat) and 1-day (Sun) pro-
gramming with four separate time/temperature periods per day
• Simultaneous heat and cool program storage
• B and O terminals for single stage heat pumps (no auxiliary
heat) or damper operation
• Preprogrammed temperature control
• Backlit display
• Program storage in case of power loss
• 2 “AA” Energizer® alkaline batteries included
• LCD continuously displays setpoint, and alternately dis-
plays time and room temperature
PRECAUTIONS
This thermostat is intended for use with a low voltage system; do
not use this thermostat with a line voltage system. If in doubt
about whether your wiring is millivolt, line, or low voltage, have
it inspected by a qualified heating and air conditioning contractor
or electrician.
! WARNING
▲
Do not use on circuits exceeding specified voltage.
Higher voltage will damage control and could cause
shock or fire hazard.
Do not exceed the specification ratings.
Do not short out terminals on gas valve or primary
control to test. Short or incorrect wiring will damage
thermostat and could cause personal injury and/or
property damage.
Allwiringmustconformtolocalandnationalelectricalcodesand
ordinances.
This control is a precision instrument, and should be handled
carefully. Rough handling or distorting components could cause
the control to malfunction.
Thermostat installation and all components of the
system shall conform to Class II circuits per the NEC
code.
! CAUTION
▲
To prevent electrical shock and/or equipment damage,
disconnect electric power to system at main fuse or
circuit breaker box until installation is complete.
SPECIFICATIONS
ELECTRICAL DATA
APPLICATIONS
Electrical Rating:
For use with:
8 to 30 VAC 50/60 Hz. or D.C.
0.05 to 1.0 Amps (Load per terminal)
1.5 Amps Maximum Total Load (All terminals combined)
• Standard heat/cool or heat only systems
• Electric heat systems
• Gas or oil fired systems
• Gas systems with intermittent ignition devices (I.I.D.)
and/or vent dampers
• Hydronic (hot water or steam) systems
• Single-stage heat pump systems (no auxiliary heat)
• Millivolt systems
THERMAL DATA
Setpoint Temperature Range:
45°F to 90°F (7°C to 32°C)
Operating Ambient Temperature Range:
32°F to 105°F
Operating Humidity Range:
0 to 90% RH (non-condensing)
Shipping Temperature Range:
-4°F to 149°F
DO NOT USE WITH:
• Multi-stage systems
• Systems exceeding 30 VAC and 1.5 amps
• 3-wire zoned hydronic heating systems
PART NO. 37-6621B
White-Rodgers is a division
of Emerson Electric Co.
Replaces 37-6621A
0512
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JUMPER
WIRE
THERMOSTAT
SYSTEM
Hot
‡
Y
C
B
O
G
W
RC
RH
THERMOSTAT
SYSTEM
‡
C
Y
B
O
G
W
RC
RH
Cooling
System Relay System
Fan
Heating
24 VAC
120 VAC
Neutral
Fan
Relay
Heating
System
Hot
HEATING
TRANSFORMER
24 VAC
120 VAC
Neutral
NOTE
For 2-wire Heat only,
attach to RH and W
Hot
TRANSFORMER
24 VAC
120 VAC
Neutral
Figure 2. Typical wiring diagram for
heat only, 3-wire, single transformer systems
COOLING TRANSFORMER
Figure 5. Typical wiring diagram for
heat/cool, 5-wire, two-transformer systems
JUMPER
WIRE
THERMOSTAT
‡
C
B
O
Y
G
W
RC
RH
SYSTEM
JUMPER
WIRE
JUMPER
WIRE
THERMOSTAT
SYSTEM
Cooling
System Relay
Fan
‡
Y
C
B
O
G
W
RC RH
Hot
24 VAC
120 VAC
Neutral
Reversing Compressor Fan
Valve*
Contactor Relay
Hot
TRANSFORMER
24 VAC
120 VAC
Neutral
Figure 3. Typical wiring diagram for
cool only, 3-wire, single transformer systems
* Reversing valve is energized when the
system switch is in the COOL position
TRANSFORMER
Figure 6. Typical wiring diagram for heat pump
with reversing valve energized in COOL
NOTE
RED jumper wire (provided with thermostat) must be
connected between thermostat RH and RC terminals
for proper thermostat operation with this system.
JUMPER
WIRE
JUMPER
WIRE
JUMPER
WIRE
THERMOSTAT
SYSTEM
‡
Y
C
B
O
G
W
RC RH
THERMOSTAT
SYSTEM
‡
C
B
O
Y
G
W
RC RH
Cooling
System Relay
Fan
Heating
System
Reversing Compressor Fan
Valve*
Contactor Relay
Hot
Hot
24 VAC
120 VAC
Neutral
24 VAC
120 VAC
Neutral
* Reversing valve is energized when the
system switch is in the HEAT position
TRANSFORMER
TRANSFORMER
Figure 7. Typical wiring diagram for heat pump
with reversing valve energized in HEAT
Figure 4. Typical wiring diagram for
heat/cool, 4-wire, single transformer systems
‡
The24VoltneutralconnectiontoterminalConthethermostatisnotrequiredifthebatteriesarereplacedonceayear
with fresh "AA" Energizer® alkaline batteries.
Cooling System
Heating System
! CAUTION
▲
To prevent compressor and/or property damage, if the
outdoor temperature is below 50°F, DO NOT operate
the cooling system.
1. Move SYSTEM switch to HEAT position. If the heating
system has a standing pilot, be sure to light it.
2. Press
toadjustthermostatsettingaboveroomtempera-
ture. The heating system should begin to operate.
1. Move SYSTEM switch to COOL position.
3. Press
to adjust temperature setting below room tem-
2. Press
toadjustthermostatsettingbelowroomtempera-
perature. The heating system should stop operating.
ture. The blower should come on immediately on high
speed, followed by cold air circulation
3. Press
to adjust temperature setting above room tem-
perature. The cooling system should stop operating.
3
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OPERATION
Before you begin programming your thermostat, you should be
familiar with its features and with the display and the location
and operation of the thermostat buttons. Your thermostat con-
sists of two parts: the thermostat cover and the base. To
remove the cover, pull it straight out from the base. To replace
the cover, line up the cover with the base and press until the
cover snaps onto the base.
The Thermostat Buttons and Switches
1
Raises temperature setting.
Lowers temperature setting.
TIME button.
2
3
4
5
6
7
PRGM (program) button.
RUN (run program) button.
HOLD temperature button.
FAN switch (ON, AUTO).
SYSTEM switch (COOL, OFF, HEAT).
8
The Display
Press HOLD to change to the next menu item or press TIME to
gobackwardstothepreviousiteminthemenu. Toexitthemenu
and return to the program operation, press RUN. If no keys are
pressed within fifteen minutes, the thermostat will revert to
normal operation.
9
Indicates day of the week.
Flame icon ( ) is displayed when the SYSTEM switch is in
the HEAT position. Snowflake icon ( )is displayed (non-
flashing)whentheSYSTEMswitchisintheCOOLposition.
Snowflake is displayed (flashing) if the thermostat is in
lockout mode to prevent the compressor from cycling too
quickly.
10
1) Select Temporary Hold Time-Thethermostatcanholdany
temperature you set it to for the amount of time you select on
this option. Your choices are 0:00 to 8:00 hours in 15 minute
increments. 0:00 disables the function
11
Displays “BATT” when the 2 "AA" batteries are low and
should be replaced. Only “BATT” and “LO” in the minutes
field are displayed when batteries are low with no system
power.
Example:
1. You have selected 3:00 hours for the Temporary Hold
time period.
Alternately displays current time and temperature. Dis-
plays “LO” in the minutes field when batteries are low.
12
13
2. With the thermostat set to Heat or Cool, press HOLD for
approximately five seconds until HOLD time (3:00
indicating 3 hours) appears as a setting reminder.
Theword“HOLD”isdisplayedwhenthethermostatisinthe
HOLD mode. “HOLD” is displayed flashing when the
thermostat is in a temporary HOLD Mode.
3. After releasing the button, “HOLD” on the display will
blink.
14
15
Displays currently programmed set temperature (this is
blank when SYSTEM switch is in the OFF position).
4. Use
or
to set the temperature to your prefer-
ence. The thermostat will maintain this temperature
setting for 3 hours with “HOLD” blinking to remind you
it is in Temporary Hold. After 3 hours the thermostat will
go back to the program temperature and “HOLD” will no
longer blink or display.
Displays “FLTR” when the system has run for the pro-
grammedfiltertimeperiodasaremindertochangeorclean
your air filter.
CONFIGURATIONMENU
2) Select FA or SL (Fast or Slow) Heating Cycle Rate - The
FA setting is frequently used for gas, oil or electric heat. The
SL setting produces a longer heating cycle which is nor-
mally for hot water or steam (hydronic) systems. Both
settings produce very accurate temperature control and
can be set to your personal preference. FA cycles the
system just under 1°F and the SL setting cycles at approxi-
mately 1.5°F.
The configuration menu allows you to set certain thermostat
operating characteristics to your system or personal require-
ments.
Press RUN to make sure the thermostat is in the run program
mode, then press PRGM and RUN at the same time to enter the
configuration menu. The display will show the first item in the
configuration menu.
The configuration menu table summarizes the configuration
options. An explanation of each option follows.
3) Select backlit display - The display backlight improves
display contrast in low lighting conditions. Selecting back-
light ON will keep the light on for a short period of time after
any key is pressed. Selecting OFF will keep the light off.
4
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Configuration Menu
Step
Press Button(s)
Displayed (Factory Default) Press
or
to select:
COMMENTS
Select temporary Hold time
1
HOLD
(0:00)
0 to 8 hrs (in
PRGM
and RUN
15 minute increments)
Select FA or SL (Fast or Slow) heating cycle rate
SL
2
3
4
5
6
HOLD
*
(FA)
d-L
(ON)
OFF
OFF
Select display backlight OFF or ON
HOLD
*
*
E
(ON)
Select Energy Management Recovery OFF or ON
HOLD
Filter
(000)
0 to 1950 hours
(in 50 hour increments)
HOLD
HOLD
HOLD
*
*
*
Select filter replacement run time
LOC
(OFF)
ON
Select compressor lockout OFF or ON
Select temperature display adjustment higher or lower
0 HI
(0)
4 LO to
4 HI
7
8
9
Select temperature display to F or C
Returns to normal operation
(F)
C
HOLD
RUN
*
* Press HOLD to advance to next item or TIME to move backwards to previous item
4)
S
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e
r
g
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M
a
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a
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e
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F
F
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-
OPERATINGFEATURES
Now that you are familiar with the thermostat buttons and
display, read the following information to learn about the many
features of the thermostat.
Energy Management Recovery (EMR) causes the thermo-
stat to start heating or cooling early to make the building
temperature reach the program setpoint at the time you
specify. Heating will start 5 minutes early for every 1° of
temperature required to reach setpoint.
• SIMULTANEOUS HEATING/COOLING PROGRAM
STORAGE — When programming, you can enter both
your heating and cooling programs at the same time. There
is no need to reprogram the thermostat at the beginning of
each season.
Example: You select EMR and have your heating pro-
grammed to 65° at night and 70° at 7 AM. If the building
temperature is 65° the difference between 65° and 70° is
5°. Allowing 5 minutes per degree the thermostat setpoint
will change to 70° at 6:35 AM. Cooling allows more time per
degree because it takes longer to reach temperature.
• TEMPERATURE OVERRIDE—Press
or
untilthe
display shows the temperature you want. The thermostat
will override current programming and keep the room
temperature at the selected temperature until the next
program period begins. Then the thermostat will automati-
cally revert to the program.
5) Select filter replacement run time - The thermostat will
display “FLTR” after a set time of operation. This is a
reminder to change or clean your air filter. This time can be
set from 0 to 1950 hours in 50 hour increments. A selection
of 000 will cancel this feature. When “FLTR” is displayed,
you can clear it by pressing HOLD and RUN at the same
time. This resets the timer and starts counting the hours
until the next filter change. Changing the time in the menu
also resets the timer.
• HOLD TEMPERATURE — The thermostat can hold any
temperature within its range for an indefinite period without
reverting to the programmed temperature. Momentarily
pressHOLDbutton.“HOLD”willbedisplayed.Thenchoose
the desired temperature by pressing
or
. The
thermostat will hold the room temperature at the selected
setting until you press RUN button to start program opera-
tion again.
6) Select Compressor Lockout LOC OFF or ON - Selecting
LOC ON will cause the thermostat to wait 5 minutes before
turning on the compressor if the heating and cooling sys-
tem loses power. It will also wait 5 minutes minimum
between cooling cycles. This is intended to help protect the
compressor from short cycling. Some newer compressors
already have a time delay built in and do not require this
feature. Your compressor manufacturer can tell you if the
feature is already present in their system. When the
compressor time delay occurs it will flash the (snowflake
icon) for about five minutes then turn on the compressor.
• CONFIGURATION MENU — Allows you to customize
certain thermostat options.
PROGRAMMINGYOURTHERMOSTAT
This section will help you plan your thermostat’s program to
meet your needs. For maximum comfort and efficiency, keep
the following guidelines in mind when planning your program.
• When heating (cooling) your building, program the
temperatures to be cooler (warmer) when the building is
vacant or during periods of low activity.
7) Select Temperature Display Adjustment 4 LO to 4 HI -
Allows you to adjust the room temperature display 4° higher
or lower. Your thermostat was accurately calibrated at the
factory but you have the option to change the display
temperature to match your previous thermostat.
• During early morning hours, the need for cooling is
usually minimal.
8) Select F° or C° Readout - Changes the display readout to
Centigrade or Fahrenheit as required.
5
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Enter Heating Program
Planning Your Program
1. Move the SYSTEM switch to HEAT.
Look at the factory preprogrammed times and temperatures
shown in the sample schedule. If this program will suit your
needs, simply press the RUN button to begin running the factory
preset program.
2. Press PRGM once. “MO TU WE TH FR” (indicating week-
day program) will appear in the display. Also displayed are
the currently programmed start time for the 1st heating
period and the currently programmed temperature (flash-
ing).
If you want to change the preprogrammed times and tempera-
tures, follow these steps.
MO TU WE TH FR
Determine the time periods and temperatures for your weekday
and weekend programs. You must program four periods for
both the weekday and weekend program. However, you may
use the same heating and cooling temperatures for consecutive
time periods. You can choose start times, heating tempera-
tures, and cooling temperatures independently for both week-
day and weekend programs (for example, you may select 5:00
AM and 70° as the weekday 1st period heating start time and
temperature, and also choose 7:00 AM and 76° as the weekday
1st period cooling start time and temperature).
AM
EXAMPLE:
This display window shows that for the 1st weekday period,
the start time is 6:00 AM, and 68° is the programmed
temperature(thisexamplereflectsfactorypreprogramming).
3. Press
or
to change the displayed temperature to
your selected temperature for the 1st heating program
period.
4. Press TIME once (the programmed time will flash). Press
Use the following table to plan your program time periods and
the temperatures you want during each period. Fill in the
complete table to have a record of your programs.
or
until your selected time appears. The time will
change in 15 minute increments. When your selected time
is displayed, press TIME again to return to the change
temperature mode.
Entering Your Program
5. Press PRGM once. The currently programmed start time
and setpoint temperature for the 2nd heating program
period will appear.
Follow these steps to enter the heating and cooling programs
you have selected.
6. Repeat steps 3 and 4 to select the start time and heating
temperature for the 2nd heating program period.
Set Current Time and Day
1. PressTIMEbuttononce. Thedisplaywillshowthehouronly.
7. Repeat steps 3 through 5 for the 3rd and 4th heating
program periods. Weekday heating programs are now com-
plete.
PM
EXAMPLE:
8. Press PRGM once. “SA” (indicating Saturday program) will
appear in the display, along with the start time for the 1st
heating period and the currently programmed temperature.
2. Press and hold either
or
until you reach the correct
hour and AM/PM designation (AM begins at midnight; PM
begins at noon).
9. Repeat steps 3 through 7 to complete Saturday heating
programming.
3. Press TIME once. The display window will show the minutes
only.
10.Press PRGM once. “SU” (indicating Sunday program) will
appear in the display, along with the start time for the 1st
heating period and the currently programmed temperature.
EXAMPLE:
11.Repeat steps 3 through 7 to complete Sunday heating
programming.
4. Press and hold either
minutes.
or
until you reach the correct
12.When you have completed entering your heating program,
press RUN.
5. Press TIME once. The display will show the day of the week.
6. Press or untilyoureachthecurrentdayoftheweek.
7. Press RUN once. The display will show the correct time and
room temperature alternately.
SAMPLE
Heating/Cooling Schedule Plan (Factory Program)
Heating/Cooling Schedule Plan
SATURDAY (1 DAY)
SUNDAY (1 DAY)
WEEKDAY (5 DAY)
SATURDAY (1 DAY)
SUNDAY (1 DAY)
WEEKDAY (5 DAY)
Start
Time
Start
Time
Start
Time
Start
Time
Start
Time
Start
Time
Period
1ST
Temperature
70˚F
Temperature
70˚F
Temperature
70˚F
Period
1ST
Temperature
Temperature
Temperature
6:00 AM
6:00 AM
6:00 AM
2ND
3RD
4TH
1ST
2ND
3RD
4TH
8:00 AM
5:00 PM
10:00 PM
6:00 AM
8:00 AM
5:00 PM
10:00 PM
62˚F
70˚F
62˚F
78˚F
85˚F
78˚F
82˚F
8:00 AM
5:00 PM
10:00 PM
6:00 AM
8:00 AM
5:00 PM
10:00 PM
62˚F
70˚F
62˚F
78˚F
85˚F
78˚F
82˚F
8:00 AM
5:00 PM
10:00 PM
6:00 AM
8:00 AM
5:00 PM
10:00 PM
62˚F
70˚F
62˚F
78˚F
85˚F
78˚F
82˚F
2ND
3RD
4TH
1ST
2ND
3RD
4TH
6
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!
C
A
U
T
I
O
N
Enter Cooling Program
CHECKYOURPROGRAMMING
Follow these steps to check your thermostat programming one
final time before beginning thermostat operation.
▲
If the outside temperature is below 50°F, disconnect
power to the cooling system before programming.
Energizing the air conditioner compressor during
cold weather may cause personal injury or property
damage.
1. Move SYSTEM switch to HEAT position.
2. Press PRGM to view the 1st weekday heating period time
and temperature. Each time you press PRGM, the next
heating period time and temperature will be displayed in
sequence for weekday, then weekend program periods (you
may change any time or temperature during this procedure).
1. Move SYSTEM switch to COOL position.
3. Press RUN.
2. Follow the procedure for entering your cooling program,
using your selected cooling times and temperatures.
4. Move SYSTEM switch to COOL position.
5. Repeat step 2 to check cooling program.
6. Move SYSTEM switch to HEAT or COOL and press RUN to
begin program operation.
YOURTHERMOSTATISNOWCOMPLETELYPROGRAMMEDAND
READY TO PROVIDE MAXIMUM COMFORT AND EFFICIENCY!
TROUBLESHOOTING
Reset Operation
program. If the thermostat has power, has been reset and still
If a voltage spike or static discharge blanks out the display or does not function correctly contact your heating/cooling ser-
causes erratic thermostat operation you can reset the thermo- vice person or place of purchase.
stat by pressing
,
and TIME at the same time. This also
Batteries
resets the factory defaults to the configuration menu and For optimum performance, we recommend replacing batteries
once a year with fresh "AA" Energizer® alkaline batteries.
Symptom
Possible Cause
Corrective Action
No Heat/No Cool/No Fan
(commonproblems)
1. Blown fuse or tripped circuit breaker.
2. Furnace power switch to OFF.
3. Furnace blower compartment door or
panel loose or not properly installed.
1. Pilot light not lit.
Replace fuse or reset breaker.
Turnswitch to ON.
Replace door panel in proper position to engage
safety interlock or door switch.
Re-light pilot.
No Heat
2. SYSTEMSwitchnotsetto HEAT.
Set SYSTEM Switch to Heat and raise setpoint
aboveroomtemperature.
3. Loose connection to thermostat or system.
Verify thermostat and system wires are securely
attached.
4. Furnace Lock-Out Condition. Heat may also
be intermittent.
Many furnaces have safety devices that shut the
system down when a lock-out condition occurs.
If the heat works intermittently contact the furnace
manufacturer or local service person for assistance.
Diagonistic:Set SYSTEM Switch toHEAT and raise
the setpoint above room temperature. Within a few
seconds the thermostat should make a soft click
sound. This sound usually indicates the thermostat
is operating properly. If the thermostat does not
click, try the reset operation listed above. If the
thermostat does not click after being reset contact
your heating and cooling service person or place
of purchase for a replacement. If the thermostat
clicks, contact the furnace manufacturer or a
service person to verify the heating system is
operating correctly.
5. Heating System requires service or
thermostat requires replacement.
NoCool
1. SYSTEMSwitchnotsettoCOOL
SetSYSTEMSwitchtoCOOLandlowersetpoint
belowroomtemperature.
2. Looseconnectiontothermostatorsystem.
Verifythermostatandsystemwiresaresecurely
attached.
3. Cooling System requires service or thermostat
requiresreplacement.
Same procedure as diagnostic for No Heat
conditionexceptsetthethermostattoCOOLand
lower the setpoint below the room temperature.
There may be up to a five minute delay before
the thermostat clicks in Cooling if the compressor
lock-out option is selected in the configuration
menu (Item 6).
7
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TROUBLESHOOTING
Symptom
Possible Cause
Corrective Action
Heat,CoolorFanRunsConstantly.
1. FANSwitchsettoFanON.
2. Possibleshortinwiring.
3. Possibleshortinthermostat.
4. PossibleshortinHeat/Cool/Fansystem.
Checkeachwireconnectiontoverifytheyare
notshortedortouchingtogether.Nobarewire
shouldstickoutfromunderterminalscrews.
Tryresettingthethermostat.Ifthecondition
persists the manufacturer of your system
or service person can instruct you on how
to test the Heat/Cool system for correct
operation. If the system operates correctly,
replace the thermostat.
FurnaceCyclesTooFastorTooSllooww
(narroworwidetemperatureswing)
1. Thelocationofthethermostatand/orthesize
oftheHeatingSystemmaybeinfluencingthe
cycle rate.
Item2intheConfigurationMenuistheadjustment
thatcontrolsthecyclerate.Ifanacceptablecycle
rate is not achieved using the FA (Fast) or SL
(Slow) adjustment contact a local service person for
additional suggestions.
CoolingCyclesTooFastorTooSlow
(narroworwidetemperatureswwiinngg))
1. Thelocationofthethermostatand/orthesize
oftheCoolingSystemmaybeinfluencingthe
cyclerate.
Thecyclerateforcoolingisfixedandcannotbe
adjusted.Contactalocalservicepersonfor
suggestions.
ThermostatSettingandThermometer
Disagree
1. Thermostatthermometersettingrequires
adjustment.
Thethermometercanbeadjusted+/-4degreesas
listedinitem7oftheConfigurationMenu.Noother
adjustment is possible.
Clock Loses or Gains Time
1. Loss of power to thermostat and low batteries.
The thermostat will maintain its program in memory
even with no power/no batteries but the clock time
will be incorrect when power is restored. See No
Heat/No Cool/No Fan (common problems) above
for items to check in the system.
HeatorCoolStartsEarly
1. EMRactivated
SeeConfigurationMenu(Item4).
ThermostatDoesNotFollowProgram
1. AMorPMsetincorrectlyinprogram.
2. AM or PM set incorrectly on the clock.
3. Voltage spike or static discharge.
Checkcurrentclockandprogramsettingsincluding
the AM or PM designations for each time period.
If a voltage spike or static discharge occurs use the
Reset Operation listed above.
BlankDisplayand/orKeypadNot
Responding
1. Lossofpoweranddeadbatteries.
2. VoltageSpikeorStaticDischarge.
Replacebatteriesandcheckheat/coolsystemfor
properoperation.Ifavoltagespikeorstaticdischarge
occurs use the Reset Operation listed above.
The Emerson logo is a
trademark and a service mark
of Emerson Electric Co.
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