TROUBLESHOOTING
CONTINUED FROM FIFTH PAGE
Symptom Possible Cause Corrective Action
Heat, Cool or Fan Runs
Constantly.
Possible short in wiring. 1.
Possible short in thermostat. 2.
Possible short in heat/cool/fan system.3.
FAN Switch set to Fan 4. ON.
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 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.
Furnace Cycles Too Fast
or Too Slow (narrow or
wide temperature swing)
The location of the thermostat and/or 1.
the size of the Heating System may be
influencing the cycle rate.
Digital thermostats normally provide precise temperature
control and may cycle faster than some older mechanical
models. A faster cycle rate means the unit turns on
and off more frequently but runs for a shorter time so
there is no increase in energy use. If you would like
to increase the cycle time, clip Jumper W-905 as for
Hydronic Heating Systems. It is not possible to shorten
the cycle time. If an acceptable cycle rate is not achieved
as received or by clipping W-905 contact a local service
person for additional suggestions.
Cooling Cycles Too Fast
or Too Slow (narrow or
wide temperature swing)
The location of the thermostat and the size 1.
of the Cooling System can influence the
cycle rate.
The cycle rate for cooling is fixed and can not be
adjusted. Contact a local service person for suggestions.
Thermostat Setting
and Thermostat
Thermometer Disagree
Thermostat thermometer setting requires 1.
adjustment.
The thermometer can be adjusted +/- 3 degrees. See
Temperature Display Adjustment in the Operation
section.
Blank Display and/or
Keypad Not Responding
Voltage spike or static discharge.1.
Battery change required.2.
Replace batteries and check heat/cool system for
proper operation. If a voltage spike occurs use the Reset
Operation listed above.
White-Rodgers is a division
of Emerson Electric Co.
The Emerson logo is a
trademark and service mark
of Emerson Electric Co.
Homeowner Help Line: 1-800-284-2925
www.white-rodgers.com
www.emersonclimate.com
(52 Seiten)
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