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Heating system is
running in cool mode.
Check Installer Setup Number 0170, Heating
and/or Cooling System Type, and make sure
the setting matches the installed heating and/
or cooling system.
Heating system does
not turn off and the
heat temperature
setting is set below
the room temperature
(“Heat On” is not
shown in display).
Check Installer Setup Number 0170, Heating
and/or Cooling System Type, and make sure
the setting matches the installed heating and/
or cooling system.
Red LED is on in the
upper right corner and
the Heat Pump is not
working.
A system monitor is wired to the thermostat L
terminal. See Heating or Cooling system does
not turn on in the Troubleshooting Tips.
Troubleshooting Tips (Continued)
If . . . Then . . .
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