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ossibossib
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le Causele Cause
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CorCor
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ActionAction
ActionAction
Action
No CoolNo Cool
No CoolNo Cool
No Cool 1. SYSTEM Switch not set to
COOLCOOL
COOLCOOL
COOL Set SYSTEM Switch to
COOLCOOL
COOLCOOL
COOL and lower setpoint
below room temperature.
2. Loose connection to thermostat or system. Verify thermostat and system wires are securely
attached.
3. Cooling System requires service or thermostat Same procedure as diagnostic for No Heat
requires replacement. condition except set the thermostat to
COOLCOOL
COOLCOOL
COOL and
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).
Heat, Cool or Fan Runs Constantly.Heat, Cool or Fan Runs Constantly.
Heat, Cool or Fan Runs Constantly.Heat, Cool or Fan Runs Constantly.
Heat, Cool or Fan Runs Constantly. 1. FAN Switch set to Fan ON. Check each wire connection to verify they are
2. Possible short in wiring. not shorted or touching together. No bare wire
3. Possible short in thermostat. should stick out from under terminal screws.
4. Possible short in Heat/Cool/Fan system. Try resetting the thermostat. 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.
Furnace Cycles Too Fast or Too SlowFurnace Cycles Too Fast or Too Slow
Furnace Cycles Too Fast or Too SlowFurnace Cycles Too Fast or Too Slow
Furnace Cycles Too Fast or Too Slow 1. The location of the thermostat and/or the size Item 2 in the Configuration Menu is the adjustment
(narrow or wide temperature swing)(narrow or wide temperature swing)
(narrow or wide temperature swing)(narrow or wide temperature swing)
(narrow or wide temperature swing) of the Heating System may be influencing the that controls the cycle rate. If an acceptable cycle
cycle rate. rate is not achieved using the FA (Fast) or SL
(Slow) adjustment contact a local service person
for additional suggestions.
Cooling Cycles Too Fast or Too SlowCooling Cycles Too Fast or Too Slow
Cooling Cycles Too Fast or Too SlowCooling Cycles Too Fast or Too Slow
Cooling Cycles Too Fast or Too Slow 1. The location of the thermostat and/or the size The cycle rate for cooling is fixed and can not be
(narrow or wide temperature swing)(narrow or wide temperature swing)
(narrow or wide temperature swing)(narrow or wide temperature swing)
(narrow or wide temperature swing) of the Cooling System may be influencing the adjusted. Contact a local service person for
cycle rate. suggestions.
Thermostat Setting and ThermometerThermostat Setting and Thermometer
Thermostat Setting and ThermometerThermostat Setting and Thermometer
Thermostat Setting and Thermometer 1. Thermostat thermometer setting requires The thermometer can be adjusted +/- 4 degrees as
DisagreeDisagree
DisagreeDisagree
Disagree adjustment. listed in item 7 of the Configuration Menu. No other
adjustment is possible.
Clock Loses or Gains TimeClock Loses or Gains Time
Clock Loses or Gains TimeClock Loses or Gains Time
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.
Heat or Cool Starts EarlyHeat or Cool Starts Early
Heat or Cool Starts EarlyHeat or Cool Starts Early
Heat or Cool Starts Early 1. EMR activated See Configuration Menu (Item 4).
Thermostat Does Not Follow ProgramThermostat Does Not Follow Program
Thermostat Does Not Follow ProgramThermostat Does Not Follow Program
Thermostat Does Not Follow Program 1. AM or PM set incorrectly in program. Check current clock and program settings including
2. AM or PM set incorrectly on the clock. the AM or PM designations for each time period.
3. Voltage spike or static discharge. If a voltage spike or static discharge occurs use the
Reset Operation listed above.
Blank Display and/or Keypad NotBlank Display and/or Keypad Not
Blank Display and/or Keypad NotBlank Display and/or Keypad Not
Blank Display and/or Keypad Not 1. Loss of power and dead batteries. Replace batteries and check heat/cool system for
RespondingResponding
RespondingResponding
Responding 2. Voltage Spike or Static Discharge. proper operation. If a voltage spike or static discharge
occurs use the Reset Operation listed above.
TRTR
TRTR
TR
OUBLESHOOOUBLESHOO
OUBLESHOOOUBLESHOO
OUBLESHOO
TINGTING
TINGTING
TING
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trademark and a service mark
of Emerson Electric Co.
White-Rodgers is a division
of Emerson Electric Co.
www.white-rodgers.com
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