Troubleshooting
Heating or cooling system does not respond
•Press SYSTEM to set system to Heat. Make sure the temperature is set higher than the Inside temperature.
•Press 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 & 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 48).
Heating system • Check Function 0170: System Type to make sure it is set to match your
is running in heating and cooling equipment (see page 54). cool mode
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