55 69-2814EFS—05
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.
• Make sure power switch at heating and cooling system is on.
• Make sure furnace door is closed securely.
“Wait” appears
on the screen
• Compressor protection feature is engaged. Wait 5 minutes for the system
to restart safely, without damage to the compressor.
Heating or
cooling system
does not
respond
• Touch SYSTEM to set system to Heat. Make sure the temperature is set
higher than the Inside temperature.
• Touch SYSTEM to set system to Cool. Make sure the temperature is set
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 36).
Troubleshooting
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