Honeywell RTH5100B Quick Installation Manual page 26

Advanced Installation Guide
Troubleshooting
Heat pump issues
cool air in heat
mode, or warm air
in cool mode
Heating and
cooling equipment
running at the
same time (or heat
does not turn off)
Heating system
is running in cool
mode
69-2329ES—03
• Check Function 2: Heat Pump Changeover Valve to
make sure it is properly configured for your system
(see page 14).
• Check Function 1: System Type to make sure it is
set to match your heating and cooling equipment
(see page 13).
• Grasp and pull thermostat away from wallplate.
Check to make sure bare wires are not touching
each other (see page 6).
• Check Function 1: System Type to make sure it is
set to match your heating and cooling equipment
(see page 13).
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