Table 3. Troubleshooting. (Continued)
Symptom
Possible Cause
Action
Heating does not
The thermostat is part of a
If thermostat indicates SAVE, wait until
come on.
Demand Response event.
energy saving event is complete. To
cancel energy saving event, if available,
No power to thermostat.
press and hold Run Program.
Check that setpoint is above room
System selection is not set
temperature.
to Heat.
Check if circuit breaker is tripped—reset
circuit breaker.
Heating setpoint is below
Check if fuse at fuse box is blown—
room temperature.
replace fuse.
Check if System switch at equipment is in
Off position—set to On position.
Wait five minutes for System to respond
(thermostat displays “Wait”).
Set System selection to Heat.
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Содержание EnergyPro T8665C
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