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“Heat On” is
not shown in
the display.
Set the System setting to Heat and set
the temperature setting above the room
temperature. If “Heat On” is shown
solidly in the display, but the heating
system does not turn on, see “Heating
system does not turn on” in
theTroubleshooting Tips.
“Cool On” is
not shown in
the display.
Set the System setting to Cool and set
the temperature setting below the room
temperature. If “Cool On” is shown solidly
in the display, but the cooling system
does not turn on, see “Cooling system
does not turn on” in the Troubleshooting
Tips.
“Heat On” is
flashing in the
display (heat
pumps only).
Compressor minimum-off timer is active.
Wait up to five minutes for the heating
system to turn on.
“Cool On” is
flashing in the
display.
Compressor minimum-off timer is active.
Wait up to five minutes for the cooling
system to turn on.
Troubleshooting Tips (Cont)
If . . .
Then . . .