Honeywell T8011R Thermostat User Manual


 
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Troubleshooting
continued
Symptom Action
Display does not come on. Check if the thermostat is mounted and latched on
the wallplatemount and latch the thermostat on
the wallplate.
Check if the circuit breaker is trippedreset the
circuit breaker.
Check if the fuse is blownreplace the fuse.
Check if the switch at the equipment is in the Off
positionset 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).