74
Symptom Possible Cause Action
Thermostat is calling
for Heat (Heat on) or
Cool (Cool on) but no
heating or cooling is
running.
Heating or cooling
equipment is not operating.
Check wiring.
Check Installer Setup Number
0170 and make sure correct
system type is chosen.
Verify operation of equipment in
System Test mode.
Fan does not turn on
in a call for heat
(electric furnace).
Fan Control in Heating is set
to Gas or Oil Furnace
(Setting 0180).
Set Fan Control in Heating to
Electric Furnace (Setting 0180).
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