TROUBLESHOOTING
TROUBLESHOOTING
TROUBLESHOOTING
TROUBLESHOOTING
TROUBLESHOOTING
Symptom
Symptom
Symptom
Symptom
Symptom
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.
Furnace Cycles Too Fast or Too Slow
Furnace Cycles Too Fast or Too Slow
Furnace Cycles Too Fast or Too Slow
Furnace Cycles Too Fast or Too Slow
Furnace Cycles Too Fast or Too Slow
(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)
Cooling Cycles Too Fast or Too Slow
Cooling Cycles Too Fast or Too Slow
Cooling Cycles Too Fast or Too Slow
Cooling Cycles Too Fast or Too Slow
Cooling Cycles Too Fast or Too Slow
(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)
Thermostat Setting and Thermometer
Thermostat Setting and Thermometer
Thermostat Setting and Thermometer
Thermostat Setting and Thermometer
Thermostat Setting and Thermometer
Disagree
Disagree
Disagree
Disagree
Disagree
Clock Loses or Gains Time
Clock Loses or Gains Time
Clock Loses or Gains Time
Clock Loses or Gains Time
Clock Loses or Gains Time
Heat or Cool Starts Early
Heat or Cool Starts Early
Heat or Cool Starts Early
Heat or Cool Starts Early
Heat or Cool Starts Early
Thermostat Does Not Follow Program
Thermostat Does Not Follow Program
Thermostat Does Not Follow Program 1. AM or PM set incorrectly in program.
Thermostat Does Not Follow Program
Thermostat Does Not Follow Program
Blank Display and/or Keypad Not
Blank Display and/or Keypad Not
Blank Display and/or Keypad Not
Blank Display and/or Keypad Not
Blank Display and/or Keypad Not
Responding
Responding
Responding
Responding
Responding
The Emerson logo is a
trademark and service mark
of Emerson Electric Co.
P P P P P ossib
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ossib
le Cause
le Cause
ossib
ossible Cause
le Cause
le Cause
1. FAN Switch set to Fan ON.
2. Possible short in wiring.
3. Possible short in thermostat.
4. Possible short in Heat/Cool/Fan system.
1. The location of the thermostat and/or the size
of the Heating System may be influencing the
cycle rate.
1. The location of the thermostat and/or the size
of the Cooling System may be influencing the
cycle rate.
1. Thermostat thermometer setting requires
adjustment.
1. Loss of power to thermostat and low batteries.
1. EMR activated
2. AM or PM set incorrectly on the clock.
3. Voltage spike or static discharge.
1. Loss of power and dead batteries.
2. Voltage Spike or Static Discharge.
HOMEOWNER HELP LINE: 1-800-284-2925
St. Louis, Missouri
www.white-rodgers.com
Corrective Action
Corrective Action
Corrective Action
Corrective Action
Corrective Action
Check each wire connection to verify they are
not shorted or touching together. No bare wire
should stick out from under terminal screws.
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.
Item 2 in the Configuration Menu is the adjustment
that controls the cycle rate. If an acceptable cycle
rate is not achieved using the FA (Fast) or SL
(Slow) adjustment contact a local service person for
additional suggestions.
The cycle rate for cooling is fixed and can not be
adjusted. Contact a local service person for
suggestions.
The thermometer can be adjusted +/- 4 degrees as
listed in item 7 of the Configuration Menu. No other
adjustment is possible.
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.
See Configuration Menu (Item 4).
Check current clock and program settings including
the AM or PM designations for each time period.
If a voltage spike or static discharge occurs use the
Reset Operation listed above.
Replace batteries and check heat/cool system for
proper operation. If a voltage spike or static discharge
occurs use the Reset Operation listed above.
Markham, Ontario