Honeywell International Inc. TH8320WF01 Manuale Utente

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69-2715EF—01
Troubleshooting
Heat pump 
issues cool air 
in heat mode, 
or warm air in 
cool mode
•  Check Function 0190: Heat Pump Changeover Valve to make sure it is 
properly configured for your system (see page 55).
Button on 
lower right of 
screen is blank
•  This button will remain blank unless the furnace filter change reminder is
activated (see page 44).
Red light is on
•  If thermostat is in Emergency Heat mode the red light is normal. It shows
that the thermostat is in emergency heat mode.
•  If thermostat is not in Emergency Heat mode, contact a qualified service
contractor for repair.