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HOMEOWNER HELP LINEHOMEOWNER HELP LINE
HOMEOWNER HELP LINEHOMEOWNER HELP LINE
HOMEOWNER HELP LINE
: 1-800-284-2925: 1-800-284-2925
: 1-800-284-2925: 1-800-284-2925
: 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.
TROUBLESHOOTINGTROUBLESHOOTING
TROUBLESHOOTINGTROUBLESHOOTING
TROUBLESHOOTING
Reset OperationReset Operation
Reset OperationReset Operation
Reset Operation
NoteNote
NoteNote
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
RR
RR
R and
CC
CC
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.
NoteNote
NoteNote
Note: Be sure to review the installer configuration menu settings.
To reset the programming, clock and configuration settings, press and and the SYSTEM
button simultaneously. The thermostat
should go blank and then all segments will be displayed momentarily.
SymptomSymptom
SymptomSymptom
Symptom
No Heat/No Cool/No FanNo Heat/No Cool/No Fan
No Heat/No Cool/No FanNo Heat/No Cool/No Fan
No Heat/No Cool/No Fan
(common problems)(common problems)
(common problems)(common problems)
(common problems)
No HeatNo Heat
No HeatNo Heat
No Heat
No CoolNo Cool
No CoolNo Cool
No Cool
Heat, Cool or FanHeat, Cool or Fan
Heat, Cool or FanHeat, Cool or Fan
Heat, Cool or Fan
Runs ConstantlyRuns Constantly
Runs ConstantlyRuns Constantly
Runs Constantly
Thermostat Setting &Thermostat Setting &
Thermostat Setting &Thermostat Setting &
Thermostat Setting &
Thermostat ThermometerThermostat Thermometer
Thermostat ThermometerThermostat Thermometer
Thermostat Thermometer
DisagreeDisagree
DisagreeDisagree
Disagree
Furnace (Air Conditioner)Furnace (Air Conditioner)
Furnace (Air Conditioner)Furnace (Air Conditioner)
Furnace (Air Conditioner)
Cycles Too Fast or Too SlowCycles Too Fast or Too Slow
Cycles Too Fast or Too SlowCycles Too Fast or Too Slow
Cycles Too Fast or Too Slow
(narrow or wide(narrow or wide
(narrow or wide(narrow or wide
(narrow or wide
temperature swing)temperature swing)
temperature swing)temperature swing)
temperature swing)
Forgot KeypadForgot Keypad
Forgot KeypadForgot Keypad
Forgot Keypad
Lockout CodeLockout Code
Lockout CodeLockout Code
Lockout Code
Possible CausePossible Cause
Possible CausePossible Cause
Possible Cause
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.
4. Loose connection to thermostat or system.
1. Pilot light not lit.
2. Furnace Lock-Out Condition. Heat
may also be intermittent.
3. Heating system requires service or
thermostat requires replacement.
1. Cooling system requires service or
thermostat requires replacement.
1. Possible short in wiring.
2. Possible short in thermostat.
3. Possible short in heat/cool/fan system.
4. FAN Switch set to Fan
ONON
ONON
ON.
1. Thermostat thermometer setting
requires adjustment.
1. The location of the thermostat and/or
the size of the Heating System may
be influencing the cycle rate.
Corrective ActionCorrective Action
Corrective ActionCorrective Action
Corrective Action
Replace fuse or reset breaker.
Turn switch to ON.
Replace door panel in proper position to engage safety
interlock or door switch.
Tighten connections.
Re-light pilot.
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.
DiagnosticDiagnostic
DiagnosticDiagnostic
Diagnostic: Set SYSTEM Switch to
HEAT HEAT
HEAT HEAT
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.
Same as diagnostic for No Heat condition except set the
thermostat to
COOL COOL
COOL COOL
COOL and lower the setpoint below the
room temperature. There may be up to a five minute delay
before the thermostat clicks in Cooling.
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.
The thermometer can be adjusted +/- 4 degrees. See
Temperature Display Adjustment in the Configuration
Menu section.
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 SL
SL SL
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.
Press the menu button (button will disappear) and hold in
for 20 seconds. This unlocks the thermostat.