17 69-1722
Cooling
system does
not turn on.
• Set the system to Cool by pressing
the System button.
• Check the cool temperature setting to
be sure it is set below the room
temperature and “Cool On” shows
solidly in the display.
• Check the circuit breaker to be sure it
is not tripped.
• Check the power switch at the heating
and/or cooling system to be sure it is
on.
• Check the furnace door to be sure it is
closed securely.
• Wait five minutes for the cooling
system to respond.
• If all of this was checked, contact your
local heating and cooling contractor.
Cannot set
System
setting to
Cool.
Check Installer Setup Number 1, Heating
and/or Cooling System Type; make sure
the setting matches the installed heating
and/or cooling system. Refer to
Installation Instructions, 69-1716.
Troubleshooting Tips (Cont)
If . . . Then . . .
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