15
69-1557
Troubleshooting
continued
Symptom
Action
Display does not come on.
•
Check if the thermostat is mounted and latched on the
wallplate—mount and latch the thermostat on the
wallplate.
•
Check if the circuit breaker is tripped—reset the circuit
breaker.
•
Check if the fuse is blown—replace the fuse.
•
Check if the switch at the equipment is in the Off
position—set to the On position.
Temperature settings do not
change (example: cannot set the
heating higher or the cooling
lower).
•
Check that the temperature setpoints are: between 40
to 99
°
F (4 to 37
°
C).
