White Rodgers Thermostat 1F95 1271 User Manual

90 Series Blue Universal Thermostat with  
Automatic Heat/Cool Changeover Option  
Single Stage, Multi-Stage, Heat Pump  
Installation and Operating Instructions for Model:  
Save these instructions for future use!  
Model  
Programming Choices  
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS  
CAREFULLYBEFOREINSTALLINGOROPERATINGTHIS  
CONTROL COULD CAUSE PERSONAL INJURY AND/OR  
PROPERTY DAMAGE.  
1F95-1271 Non-Programmable 5/1/1 Day 7 Day  
APPLICATIONS  
1F95-1271 Touchscreen Thermostat  
THERMOSTAT APPLICATION GUIDE  
Description  
Heat Pump (No Aux. or Emergency Heat)  
Heat Pump (with Aux. or Emergency Heat)  
Systems with up to 3 Stages Heat, 2 Stages Cool  
Heat Only Systems  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
No  
Millivolt Heat Only Systems – Floor or Wall Furnaces  
Cool Only Systems  
Gas or Oil Heat  
Electric Furnace  
Hydronic (Hot Water) Zone Heat – 2 Wires  
Hydronic (Hot Water) Zone Heat – 3 Wires  
SPECIFICATIONS  
Electrical Rating:  
Battery Power . . . . . . . . . . . . . . . . . . . . . . . . . mV to 30 VAC, NEC Class II, 50/60 Hz or DC  
Input-Hardwire . . . . . . . . . . . . . . . . . . . . . . . . 20 to 30 VAC  
Terminal Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 A per terminal, 2.5A maximum all terminals combined  
Setpoint Range . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 to 99°F (7 to 32°C)  
Differential (Single Stage) . . . . . . . . . . . . . . . . . . . Heat 0.6°F; Cool 1.2°F  
Differential (Multi-Stage) . . . . . . . . . . . . . . . . . . . . Heat 0.6°F; Cool 1.2°F  
Differential (Heat Pump) . . . . . . . . . . . . . . . . . . . . Heat 1.2°F; Cool 1.5°F  
Operating Ambient . . . . . . . . . . . . . . . . . . . . . . . . . 32° to +105°F (0 to +41°C)  
Operating Humidity . . . . . . . . . . . . . . . . . . . . . . . . 90% non-condensing max.  
Shipping Temperature Range . . . . . . . . . . . . . . . . -4 to +150°F (-20 to +65°C)  
Dimensions Thermostat . . . . . . . . . . . . . . . . . . . . . 4.6"H x 5.9"W x 1.2"D  
ATTENTION: MERCURY NOTICE  
This product does not contain mercury. However, this  
product may replace a product that contains mercury.  
CAUTION  
To prevent electrical shock and/or equipment dam-  
age, disconnect electric power to system at main fuse  
or circuit breaker box until installation is complete.  
!
Mercury and products containing mercury must not be  
discarded in household trash. Do not touch any spilled  
mercury. Wearing non-absorbent gloves, clean up any  
spilled mercury and place in a sealed container. For proper  
disposal of a product containing mercury or a sealed  
container of spilled mercury, place it in a suitable shipping  
container and send it to:  
Index  
Installation  
Page  
2
2
3
4
6
6
8
Wiring Connections  
Thermostat Quick Reference  
Installer Configuration Menu  
Operating Your Thermostat  
Programming  
White-Rodgers  
2895 Harrison Street  
Batesville, AR 72501  
Troubleshooting  
PART NO. 37-6735A  
0544  
 
THERMOSTAT QUICK REFERENCE  
Home Screen Description  
Figure 2 – Home Screen Display  
Room Temperature and Setting Temperature  
(flashes when compressor is in 5 minute lockout)  
Time and Day  
System button for selecting  
Heat/Off/Cool or Auto (Heat/Cool)  
Temperature Up/Down  
Displays  
indicating the current power  
Fan (Auto/On)  
level of the 2 "AA" batteries. When the batteries  
become low, "Change" will appear with the  
The batteries should be replaced at this time.  
.
Menu for Cleaning, Programming  
and Setting Time  
Stage 1  
Indicates when thermostat is  
calling for Heat or Cool  
Figure 3 – Programming & Configuration Items  
11  
10  
Programming and Configuration Items  
Displays and "Keypad Lockout" when in keypad  
lockout mode.  
1
9
Displays and "Temperature Limit" and "Keypad  
Lockout" when limited range is activated and locked.  
Displays only "Temperature Limit" when limited range  
is activated.  
1
8
14  
2
13  
Indicates period of day being programmed.  
RUN SCHEDULE (run program) button.  
SET TIME button or HOLD temperature button.  
12  
2
3
4
3
Displays "Change Filter" when the system has run  
for the programmed filter time period as a reminder  
to change or clean your filter. Displays "Humidifier  
Pad" when the system has run for the programmed  
filter time period as a reminder to change or clean your  
humidifier pad.  
5
5
4
7
6
The words "Hold At" are displayed when the thermo-  
stat is in the HOLD mode. "Temporary Hold At" is  
displayed when the thermostat is in a temporary HOLD  
mode.  
11  
COPY button or INSTALLER CONFIG button.  
6
7
CLEAN DISPLAY button allows 30 seconds to wipe off  
the display or ADVANCE DAY button for programming.  
"Call For Service" indicates a fault in the heating/  
cooling system. It does not indicate a fault in the  
thermostat.  
12  
13  
14  
Used in programming to set time and in configuration  
menu to change selections.  
8
9
"Stage 1" indicates when heating or cooling stage is  
energized. "+2" also indicates when a second stage is  
energized.  
"Hold Until" indicates the time when a temporary hold  
period will end.  
"Hours" and "Days" displays during steps in installer  
configuration.  
10  
"Copy" indicates the copy program feature is being  
used during programming.  
3
 
INSTALLER/CONFIGURATION MENU  
To enter the menu: Press the Menu button. Press and hold for 5 seconds the Installer Config button. This displays menu  
item #1 in the table below. Press  
to change a menu item.  
to advance to the next menu item or  
to return to a previous menu item. Press  
or  
CONFIGURATION MENU  
Non-  
Displayed  
(Factory  
Default)  
Press  
to select from  
listed options  
or  
Menu  
Reference  
Number  
Program- Program- Press  
mable  
mable  
Button  
Comments  
1
1
MS 2  
HP 1, HP 2, SS 1 Selects Multi-Stage (MS 2, No Heat Pump), Heat Pump 1  
(HP 1, 1 compressor), Heat Pump 2 (HP 2, 2 compressor  
or 2 speed compressor), or Single Stage.  
1
2
2
(GAS)  
ELE  
GAS setting: furnace controls blower.  
ELE setting: thermostat controls blower.  
Selects programming option.  
2
3
4
5
3
* NA  
4
Days (7)  
PS (4)  
5, 0  
2
3
4
5
Selects programming steps per day.  
Cool Off Cool Off Heat (Emer), Selects system switch configuration for Heat and Cool with  
Heat Auto  
E (On)  
Off Heat, Cool Off Auto changeover, Heat & Cool, Heat Only or Cool Only.  
6
7
8
9
* NA  
OFF  
SL  
Selects Energy Management Recovery on or off.  
Selects Heat cycle rate Fast (FA) or Slow (SL).  
Selects Cool cycle rate Fast (FA) or Slow (SL).  
If HP 1 or HP 2 is selected for item #1, selects Emer cycle  
rate.  
6
7
8
9
5
6
7
Cr Heat (FA)  
Cr Cool (FA)  
Cr Emer (FA)  
SL  
SL  
10  
11  
12  
8
9
CL (OFF)  
dL (On)  
0
On  
OFF  
Selects Compressor lockout ON or OFF.  
Selects display light on or off.  
10  
11  
12  
10  
1, 2, 3, 4 HI  
1, 2, 3, 4 LO  
°C  
Selects temperature display adjustment 1, 2, 3 or 4 degrees  
high or low.  
(Room temp)  
°F  
13  
14  
15  
11  
12  
13  
Selects Fahrenheit or Celsius temperature display.  
Selects beeper on or off.  
13  
14  
15  
b (On)  
OFF  
Heat (99)  
62-99  
Selects highest Heat setpoint temperature.  
Can select 62° to 99°F.  
16  
17  
18  
14  
15  
16  
Cool (45)  
45-82  
Selects lowest Cool setpoint temperature.  
Can select 45° to 82°F.  
16  
17  
18  
Keypad  
lockout (L)  
Keypad  
L, P  
Selects keypad lockout full or partial to be set.  
Temperature Limit Activates temperature limit ranges.  
On  
000 to 999  
OFF  
Selects keypad lockout on or off.  
lockout (OFF)  
000  
Selects keypad lockout combination number if lockout is on.  
000 is not a valid selection.  
19  
20  
21  
17  
18  
19  
FA Heat (On)  
FA Cool (On)  
If HP or MS selected in item 1, selects Heat Fast second  
stage On or Off.  
19  
20  
21  
OFF  
If HP or MS selected in item 1, selects Cool Fast second  
stage On or Off.  
000 Change  
Filter (OFF)  
200 hours  
Change  
On  
Select change filter alert time period.  
25 to 1975 hours  
On  
When set ON, selects time in 25 hour increments.  
Selects change humidifier pad alert time period  
22  
20  
22  
Humidifier  
(OFF)  
100 hours  
25 to 1975 hours  
When set ON, selects time in 25 hour increments.  
* Not Applicable  
1) This control can be configured for:  
3) This control can be configured for 7 independent day or  
5/1/1 day programming or non-programmable mode. The  
display indicates "7 Days" as default. The programs per  
week can be toggled to "5 Days" or "0 Days" by pressing  
MS2 – Multi-Stage System (no heat pump)  
HP1 – Heat Pump with one stage of compressor  
HP2 – Heat Pump with two stage compressor or two  
compressor system, Gas or Electric backup  
SS1 – Single Stage System  
the  
or  
keys. A selection of 0 Days for non-program-  
mable will eliminate the need for EMR, and that step  
in the menu will be skipped.  
2) GAS or Electric (ELE) fan operation. If the heating system  
requires the thermostat to energize the fan, select ELE.  
Select GAS if the heating system energizes the fan on a  
call for heat. Note: Resetting the thermostat switches  
the option to ELE.  
4) Programmable Periods – This control can be configured  
for 4 or 2 programmable periods per day. The display  
indicates "4 PS" in the display as default. The program-  
mable periods can be toggled by pressing the  
keys.  
or  
4
 
INSTALLER/CONFIGURATION MENU  
5) System Switch Configuration – This thermostat is  
configured for Heat and Cool with Auto changeover  
(SYSTEM switch with Cool Off Heat Auto) default. It can  
also be configured for Heat and Cool (Cool Off Heat),  
Heat only (Off Heat), and Cool only (Cool Off).  
setting is 45°F. It can be changed between 46°F and  
82°F by pressing the or key. The "temperature  
limit" icon will be displayed to the left of your setpoint  
temperature when using this feature. The "temperature  
limit" icon will flash if an attempt is made to adjust the  
temperature beyond the range selected.  
6) Energy Management Recovery – (this step is skipped if  
configured to be non-programmable).  
17) Keypad Lockout – This step allows you to select the  
type of lockout or limited range security required. If no  
Energy Management Recovery (E) On causes the  
thermostat 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.  
Example: If E On is selected 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 set-  
point will change to 70° at 6:35 AM. Cooling allows  
more time per degree, because it takes longer to reach  
temperature.  
lockout or limited range security is required, press  
advance the menu.  
Three security settings are available in this menu item.  
Use the or keys to select the lockout desired.  
Lockout selections are:  
"Keypad Lockout and L" = Total Lockout. Total Lockout  
locks all keys.  
to  
"Keypad Lockout and P" = Partial Lockout. Partial Lock-  
out allows only the  
or  
keys to operate within your  
set temperature limits.  
"Temperature Limit/Keypad Lockout" prevents  
changing the temperature limits in the Configuration  
Menu.  
7, 8 & 9) Cycle Rate Selection – The factory default setting  
for Heat is fast cycle (FA Cr), which cycles heat at  
approximately 0.6°F. If you prefer slow cycle, press the  
18) Keypad Lockout Combination Number Selection  
Display will read "OFF" "Keypad Lockout".  
Skip this step and continue through the configuration  
menu items 19 thru 22 if you require an Air Filter Change  
out indicator or Humidifier Pad Change out indicator by  
or  
key to change to SL. Heat will cycle at approxi-  
mately 1.2°F. For Cool the default setting is fast cycle  
(FA Cr), which cycles cool at approximately 1.2°F. If you  
prefer slow cycle, press the  
or  
key to change to SL,  
pressing the  
button to advance.  
cool will cycle at approximately 1.7°F. Cycle rate selec-  
tion for EMER and Aux is only for HP 1 or HP 2 systems.  
10) Select Compressor Lockout CL OFF or ON – Selecting  
CL ON will cause the thermostat to wait 5 minutes be-  
tween cooling cycles. This is intended to help protect the  
compressor from short cycling. Some newer compres-  
sors already have a time delay built in and do not require  
this feature. Your compressor manufacturer can tell you if  
the lockout feature is already present in their system.  
When the thermostat compressor time delay occurs, it  
will flash the setpoint for up to five minutes.  
11) Select Backlight Display – The display backlight  
improves display contrast in low lighting conditions.  
When the C terminal is powered, selecting backlight (dL  
ON) will turn the light on continuously. Selecting backlight  
OFF will turn the light on momentarily after any key is  
pressed. When the C terminal is not powered, this  
selection has no effect.  
Return to this point when you are ready to start your  
selected lock-out and continue by:  
Pressing  
Press . Display will read "000".  
Pressing or keys to select your keypad lockout  
combination number. Note: "000" is not a valid  
combination choice.  
Record the number you select for future use.  
or  
keys to select ON.  
Press  
to exit the menu. The security feature you  
select will start in 10 seconds. The system button will  
remain active for 10 seconds to allow setting Heat, Off,  
Cool or Auto.  
19 & 20) Select Fast Second Stage ON or OFF – In the run  
mode, with the fast Heat feature enabled (FA Heat On), if  
the Heat setpoint temperature is manually raised by 3°F  
(2°C) or more above the actual temperature using  
second stage will energize immediately. With FA OFF,  
the  
second stage will not energize until the setpoint tempera-  
ture is 1°F or more above actual temperature for more  
than ten minutes. The Fast Cool feature (FA Cool)  
provides the same controls when the setpoint tempera-  
ture is lowered.  
12) Select Temperature Display Adjustment 4 LO to 4 HI  
Allows you to adjust the room temperature display up to  
4° higher or lower. Your thermostat was accurately cali-  
brated at the factory, but you have the option to change  
the display temperature to match your previous thermo-  
stat. The current or adjusted room temperature will be  
displayed on the left side of the display.  
13) Select F° or C° Readout – Changes the display readout  
to Centigrade or Fahrenheit as required.  
14) Select Audio Prompting (Beeper) On or Off – Default  
setting is On (On b) if you wish to turn off the beeper  
select Off b.  
21) Select Filter Replacement Run Time – The thermostat  
will display "Change Filter" after a set time of blower  
operation. This is a reminder to change or clean your air  
filter. This time can be set from 25 to 1975 hours in 25  
hour increments. A selection of OFF will cancel this  
feature. When "Change Filter" is displayed, you can  
clear it by pressing Clean Display. In a typical application,  
200 hours of run time is approximately 30 days.  
22) Select Humidifier Pad Replacement Run Time – The  
thermostat will display "Humidifier Pad" after a set time  
of heating operation. This is a reminder to change or  
clean your humidifier pad. This time can be set from 25  
to 1975 hours in 25 hour increments. A selection of OFF  
will cancel this feature. When "Humidifier Pad" is  
displayed, you can clear it by pressing Clean Display.  
Check with your humidifier manufacturer for a recom-  
15) Heat Temperature Limit Range – This feature adjusts  
the highest setpoint temperature for heat. The default  
setting is 99°F. It can be changed between 62°F and  
98°F by pressing the  
or  
key. The "temperature  
limit" icon will be displayed to the left of your setpoint  
temperature when using this feature. The "temperature  
limit" icon will flash if an attempt is made to adjust the  
temperature beyond the range selected.  
16) Cool Temperature Limit Range – This feature adjusts  
the lowest setpoint temperature for cool. The default  
mended maintenance interval.  
5
 
OPERATING YOUR THERMOSTAT  
Choose the Fan Setting (Auto or On)  
Set the FAN Switch to Auto or On.  
Fan Auto is the most commonly selected setting and runs  
the fan only when the heating or cooling system is on.  
Fan On runs the fan continuously for increased air circulation  
or to allow additional air cleaning.  
IMPORTANT!  
Manual Operation (Bypassing the Program)  
Programmable Thermostats  
Press  
or  
and the HOLD button and adjust the tempera-  
ture wherever you like. This will override the program. The  
HOLD feature bypasses the program and allows you to  
adjust the temperature manually, as needed. Whatever  
temperature you set in HOLD will be maintained 24 hours a  
day, until you manually change the temperature or press Run  
Schedule to cancel HOLD and resume the programmed  
schedule.  
Choose the System Setting  
(Heat, Off, Cool, Auto)  
Press the SYSTEM button to select:  
Heat: Thermostat controls only the heating system.  
Off: Heating and Cooling systems are off.  
Program Override (Temporary Override)  
Cool: Thermostat controls only the cooling system.  
Press  
or  
buttons to adjust the temperature. This will  
Auto: Auto Changeover is used in areas where both heating  
and cooling may be required on the same day. AUTO allows  
the thermostat to automatically select heating or cooling  
depending on the indoor temperature and the selected heat  
override the temperature setting for a (default) four hour  
override period. The override period can be shortened by  
pressing  
or lengthened by pressing . Program Override  
period can range from 15 minutes to 7 days.  
and cool temperatures. When using AUTO, be sure to set the Example: If you turn up the heat during the morning pro-  
Cooling temperatures more than 1° Fahrenheit higher than  
the heating temperature.  
gram, it will be automatically lowered later, when the tempo-  
rary hold period ends. To cancel the temporary setting at any  
time and return to the program, press Run Schedule.  
If the SYSTEM button is pressed to select AUTO the  
thermostat will change to Heat or Cool, whichever ran last. If  
it switches to heat but you want cool, or it changes to cool  
Manual Operation for  
Non-Programmable Thermostats  
Press the SYSTEM button to select Heat or Cool and use  
the  
or  
buttons to adjust the temperature to your  
but you want heat, press both  
or  
buttons simulta-  
desired setting. After selecting your desired settings you can  
also press the SYSTEM button to select AUTO to allow  
the thermostat to automatically change between Heat and  
Cool.  
neously to change to the other mode.  
PROGRAMMING  
Set Current Time and Day  
1) Press Menu and then Set Time button once. The display  
will show the hour only.  
Fill in the blank schedule on the next page then:  
Enter the Heating Program  
1) Press the Menu button and then press Set Schedule.  
Press SYSTEM button to select either "Heat" or "Cool" in  
the system switch area indicating the active mode being  
programmed. You can switch to the other mode by  
pressing the system switch at any time.  
2) Press and hold either the  
or  
key until you reach  
the correct hour and AM/PM designation (AM begins at  
midnight, PM begins at noon).  
3) Press Set Time once again. The display window will show  
the minutes only.  
4) Press and hold either the  
the correct minutes.  
5) Press Set Time once again. The display will show the day  
of the week.  
2) The top of the display will show the day(s) being pro-  
grammed. The time and set at temperature are also  
displayed. "Morning" will also be displayed to indicate  
the period.  
or  
key until you reach  
3) Press  
selected temperature for the 1st heating period (Morning).  
4) Press or key to adjust the start time for period.  
or  
key to change the temperature to your  
6) Press the  
of the week.  
or  
key until you reach the current day  
7) Press Run Schedule once. The display will show the  
correct time and room temperature alternately.  
5) The time will change in 15 minute increments.  
6) After you have set the time and the temperature for the  
period to begin, press Set Schedule to advance to the  
next program period.  
7) Repeat steps 2 through 6 until all of the program times  
and temperatures are set for all program periods on  
that day.  
8) Press "Advance Day" to change to the next day and  
repeat steps 2 through 8.  
9) When programming is complete and all of the times and  
temperatures match your desired heating schedule, press  
Run Schedule. The thermostat will now run your program.  
Programming Tip: Copy Button  
You may copy any daily program to another day or group of  
days by pressing the Copy button. In 7 day programming  
mode when the Copy button is pressed, the other 6 days of  
the week will flash. To copy the current program into the  
remaining six days, simply press the Copy button again. To  
copy the current program to another day of the week, press  
Advance Day to select the day and press Copy to paste the  
program. In 5/1/1 day programming mode the copy function  
is similar. The weekday (Mon-Fri) program can be copied to  
Sat and Sun (both flashing) or use Advance Day to choose  
Sat or Sun and press the Copy button to paste the program.  
Enter the Cooling Program  
1) Press the SYSTEM button until the Cool icon appears.  
2) Follow Enter Heating Program instructions for entering  
cooling times and temperatures.  
6
 
PROGRAMMING  
Energy Saving Factory Pre-Program  
The 1F95-1271 thermostats are programmed with the energy saving settings shown in the table below for all days of the  
week. If this program suits your needs, simply set the thermostat clock and press the RUN button.  
The table below shows the factory set heating and cooling schedule for all days of the week.  
* Wake Up  
(Morning)  
Leave For Work  
(Day)  
* Return Home  
(Evening)  
Go To Bed  
(Night)  
Heating  
Program  
6:00 AM  
70°F  
8:00 AM  
62°F  
5:00 PM  
70°F  
10:00 PM  
62°F  
82°F  
Cooling  
Program  
6:00 AM  
78°F  
8:00 AM  
85°F  
5:00 PM  
78°F  
10:00 PM  
* You can eliminate these two program periods in the configuration menu (reference #3) if the building is occupied all day.  
Day will change to 6:00 am and can be programmed as required.  
Planning Your Program – Important  
The Heating and Cooling Program schedules below allow you to pencil in your own program times and temperatures.  
The 1F95-1271 comes configured for 7 day programming and can also be configured for 5+1+1 programming (see configura-  
tion section).  
Factory settings are listed on Monday, Saturday and Sunday. If you are re-programming a 5+1+1 day schedule, pencil in your  
own times and temperatures directly below the factory times and temperatures.  
If you are re-programming a 7 day fill in all lines with the times and temperatures you want.  
Keep the following guidelines in mind when planning your program.  
• In Heating, lower temperatures will save energy.  
• In Cooling, higher temperatures will save energy.  
If you plan on using Auto Changeover, do not program the heating higher than the cooling.  
Worksheet for Re-Programming 5+1+1 and 7 Day Program  
Heating  
Program  
Wake Up  
(Morning)  
Leave For Work  
(Day)  
Return Home  
(Evening)  
Go To Bed  
(Night)  
6:00 AM  
70°F  
8:00 AM  
62°F  
5:00 PM  
70°F  
10:00 PM  
62°F  
MON  
TUE  
WED  
THU  
FRI  
6:00 AM  
6:00 AM  
70°F  
70°F  
8:00 AM  
8:00 AM  
62°F  
62°F  
5:00 PM  
5:00 PM  
70°F  
70°F  
10:00 PM  
10:00 PM  
62°F  
62°F  
SAT  
SUN  
Cooling  
Program  
Wake Up  
(Morning)  
Leave For Work  
(Day)  
Return Home  
(Evening)  
Go To Bed  
(Night)  
6:00 AM  
78°F  
8:00 AM  
85°F  
5:00 PM  
78°F  
10:00 PM  
82°F  
MON  
TUE  
WED  
THU  
FRI  
6:00 AM  
6:00 AM  
78°F  
78°F  
8:00 AM  
8:00 AM  
85°F  
85°F  
5:00 PM  
5:00 PM  
78°F  
78°F  
10:00 PM  
10:00 PM  
82°F  
82°F  
SAT  
SUN  
7
 
TROUBLESHOOTING  
Reset Operation  
Note: When thermostat is reset, installer configuration menu settings and programming will reset to factory settings.  
If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation, you can reset the thermostat by removing  
the wires from terminals R and C (do not short them together) and removing batteries for 2 minutes. After resetting the thermostat, replace  
the wires and batteries. If the thermostat has been reset and still does not function correctly contact your heating/cooling service person or  
place of purchase.  
Note: Be sure to review the installer configuration menu settings.  
To reset the programming, clock and configuration settings, press  
should go blank and then all segments will be displayed momentarily.  
and  
and the SYSTEM button simultaneously. The thermostat  
Possible Cause  
Corrective Action  
Symptom  
1. Blown fuse or tripped circuit breaker.  
2. Furnace power switch to OFF.  
Replace fuse or reset breaker.  
Turn switch to ON.  
No Heat/No Cool/No Fan  
(common problems)  
3. Furnace blower compartment door or  
panel loose or not properly installed.  
Replace door panel in proper position to engage safety  
interlock or door switch.  
4. Loose connection to thermostat or system. Tighten connections.  
1. Pilot light not lit.  
Re-light pilot.  
No Heat  
2. Furnace Lock-Out Condition. Heat  
may also be intermittent.  
Many furnaces have safety devices that shut down when a  
lock-out condition occurs. If the heat works intermittently  
contact the furnace manufacturer or local HVAC service  
person for assistance.  
3. Heating system requires service or  
thermostat requires replacement.  
Diagnostic: Set SYSTEM Switch to HEAT 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 HVAC service  
person to verify the heating is operating correctly.  
1. Cooling system requires service or  
thermostat requires replacement.  
Same as diagnostic for No Heat condition except set the  
thermostat to COOL and lower the setpoint below the  
room temperature. There may be up to a five minute delay  
before the thermostat clicks in Cooling.  
No Cool  
1. Possible short in wiring.  
Check each wire connection to verify they are not shorted  
or touching together. No bare wire should stick out from  
under terminal block. Try resetting the thermostat as  
described above. If the condition 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.  
Heat, Cool or Fan  
Runs Constantly  
2. Possible short in thermostat.  
3. Possible short in heat/cool/fan system.  
4. FAN Switch set to Fan ON.  
1. Thermostat thermometer setting  
requires adjustment.  
The thermometer can be adjusted +/- 4 degrees. See  
Temperature Display Adjustment in the Configuration  
Menu section.  
Thermostat Setting &  
Thermostat Thermometer  
Disagree  
1. The location of the thermostat and/or  
the size of the Heating System may  
be influencing the cycle rate.  
Digital thermostats provide precise control and cycle faster  
than older mechanical models. The system turns on and  
off more frequently but runs for a shorter time so there is  
no increase in energy use. If you would like an increased  
cycle time, choose SL for slow cycle in the Configuration  
menu, step 6 (heat) or 7 (cool). If an acceptable cycle rate  
is not achieved, contact a local HVAC service person for  
additional suggestions.  
Furnace (Air Conditioner)  
Cycles Too Fast or Too Slow  
(narrow or wide  
temperature swing)  
Press the menu button (button will disappear) and hold in  
for 20 seconds. This unlocks the thermostat.  
Forgot Keypad  
Lockout Code  
HOMEOWNER HELP LINE: 1-800-284-2925  
White-Rodgers is a division  
of Emerson Electric Co.  
The Emerson logo is a  
trademark and service mark  
of Emerson Electric Co.  
St. Louis, Missouri  
 

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