Troubleshooting - Honeywell Home 9000 Series User Manual

Troubleshooting

If you have difficulty with your thermostat, please try the following suggestions.
Most problems can be corrected quickly and easily.
Display is blank • Check circuit breaker and reset if necessary.
"Wait" appears
on the screen
Heating or
cooling system
does not
respond
• Make sure power switch at heating and cooling system is on.
• Make sure furnace door is closed securely.
• Compressor protection feature is engaged. Wait 5 minutes for the
system to restart safely, without damage to the compressor.
• Touch SYSTEM
higher than the Inside temperature.
SYSTEM
• Touch
lower than the Inside temperature.
• Check circuit breaker and reset if necessary.
• Make sure power switch at heating and cooling system is on.
• Make sure furnace door is closed securely.
• If "Wait" is displayed, the compressor protection timer is on. Wait
5 minutes for the system to restart safely, without damaging the
compressor (see page 25).
to set system to Heat. Make sure the temperature is set
to set system to Cool. Make sure the temperature is set
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