Справочник Пользователя для Honeywell International Inc. TH8321R01

 Troubleshooting

If you have difficulty with your thermostat, try these suggestions. Most problems can  
be corrected quickly and easily.

Screen 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.
•  If thermostat is battery powered, make sure fresh AA alkaline batteries are 

installed correctly (see page 32).

•  Change screen brightness using Preferences menu (see page 26).

•  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, an alert is active. Check 

message on the thermostat screen.

•  Touch 

 to set system to Heat. Make sure the temperature is set 

higher than the Inside temperature.

•  Touch 

 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.