Honeywell T8002 Owner's Manual - Page 16
Troubleshooting - thermostat troubleshooting
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Troubleshooting Symptom Display does not come on. Temperature settings do not change (example: cannot set the heating higher or the cooling lower). Action • 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. • Check if the batteries are good and installed correctly (T8002 only). • Check that the temperature setpoints are: between 40 to 99°F (4 to 37°C). continued 16 69-1431-1
69-1431–1
16
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.
•
Check if the batteries are good and installed correctly
(T8002 only).
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).