Advanced Installation Guide
69-2219EF—03 24
Troubleshooting
SETUPWIRINGASSISTANCETROUBLESHOOTING
If you have difficulty with your thermostat, please try
the following suggestions.
Most problems can be corrected quickly and easily.
Display is blank • Make sure fresh AAA alkaline
batteries are properly installed
(see page 7).
Cannot change
system setting
to Cool
• Check Function 0170: System
Type to make sure it is set to
match your heating and cooling
equipment (see page 16).
Fan does not
turn on when
heat is required
• Check Function 0180: Heating
Fan Control to make sure it is set
to match your heating equipment
(see page 17).
“Wait” appears
on the screen
• Compressor protection feature is
engaged. Wait 5 minutes for the
system to restart safely, without
damage to the compressor.
Heat pump
issues cool air
in heat mode, or
warm air in cool
mode
• Check Function 0190: Heat Pump
Changeover Valve to make sure
it is properly configured for your
system (see page 17).