In Case Of Difficulty; Troubleshooting - ComfortNET CTK04 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.
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• 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
difficult to
menu (see page 20).
read
• At 2 am each day, the ComfortNet
screen color for an hour, to prevent burn-in. Touch the screen at any time to restore
pre-set screen colors.
Heating • Press
or cooling
the Inside temperature.
system does
• Press
not respond
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 "Waiting For Equipment" is displayed, the compressor protection timer is on. Wait
5 minutes for the system to restart safely, without damaging the compressor.
to set system to Heat. Make sure the temperature is set higher than
SYSTEM
to set system to Cool. Make sure the temperature is set lower than
SYSTEM
ComfortNet™ Communicating Thermostat
™
CTK04 communicating thermostat changes
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69-2687EFS—03