39 69-2740EFS—01
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.
Screen is
difficult to
read
• Change screen brightness using Preferences menu (see page 27).
• 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 or
cooling system
does not
respond
• Touch SYSTEM to set system to Heat. Make sure the temperature is set
higher than the Inside temperature.
• Touch 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 “Waiting For Equipment” is displayed, the compressor protection timer
is on. Wait 5 minutes for the system to restart safely, without damaging
the compressor.
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