In Case Of Difficulty - Honeywell Prestige THX9321 Operating Manual

Operating Manual

In case of difficulty

If you have difficulty with your thermostat, please try the suggestions below. Most
problems can be corrected quickly and easily.
Screen is • Check circuit breaker and reset if necessary.
blank
• Make sure power switch at heating & cooling system is on.
• Make sure furnace door is closed securely.
Screen is
• To change the screen brightness or color, see backlight options in the Preferences menu
difficult to
(see page 21).
read
• At 2 am each day, Prestige thermostats change screen colors for an hour, to prevent burn-
in. Touch the screen at any time to restore pre-set screen colors.
Heating
• Press
or cooling
Inside temperature.
system does
• Press
not respond
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 "Waiting For Equipment" is displayed, the compressor protection timer is on. Wait 5
minutes for the system to restart safely, without damaging the compressor.
69-2493EFS—01
to set system to Heat. Make sure the temperature is set higher than the
SYSTEM
to set system to Cool. Make sure the temperature is set lower than the
SYSTEM
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