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Troubleshooting
If you have difficulty with your thermostat, please try the following suggestions. Most problems can be
corrected quickly and easily.
• Check circuit breaker and reset if necessary.
• Make sure power switch at heating and cooling system is on.
Display is blank
• Make sure furnace door is closed securely.
• Make sure C wire is connected (see
Cannot change
• Check that System Setup screen "Your thermostat controls" or "Your system type" is
system setting to
Cool
Fan does not turn
• Check that System Setup screen "Your fan control" is set to match your heating
on when heat is
required
"Wait" appears on
• Compressor protection feature is engaged. Wait 5 minutes for the system to restart
the screen
Heat pump issues
cool air in heat
• Check your setting for System Setup screen "Type of changeover valve" to make sure
mode, or warm air
in cool mode
• Touch
• Touch
Heating or cooling
• Check circuit breaker and reset if necessary.
system does not
• Make sure power switch at heating and cooling system is on.
respond
• Make sure furnace door is closed securely.
• If "Wait" is displayed, the compressor protection timer is on. Wait 5 minutes for the
• Check that System Setup screen "Your thermostat controls" or "Your system type"
Heating system
is running in cool
mode
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33-00593ES_A.indb 38
set to match your heating and cooling equipment (see page 35).
equipment (see page 34).
safely, without damage to the compressor.
it is properly configured for your system (see page 34).
MODE
to set system to Heat. Make sure the temperature is set higher than the
Inside temperature.
MODE
to set system to Cool. Make sure the temperature is set
lower than the Inside temperature.
system to restart safely, without damaging the compressor (see page 31).
is set to match your heating and cooling equipment (see "System Setup Options
(SETTINGS > System Setup)" on page 35).
).
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9/20/2021 7:09:55 PM
9/20/2021 7:09:55 PM
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