19
Troubleshooting
• SYMPTOM: The slide switches on the thermostat are very
difficult to move.
CAUSE: The backplate of the thermostat is screwed too tightly into
a wall that is not perfectly flat.
REMEDY: Loosen the screws holding the thermostat into the wall.
• SYMPTOM: The Air Conditioning does not attempt to turn on.
CAUSE: The cooling setpoint is set too high, the Mode Switch is not
set for Cool, the batteries are too weak, or the Aux. Heat Switch is set
for Emergency.
REMEDY: Consult the Normal Operation section in this manual to:
- Lower the cooling setpoint (Page 6).
- Correct the Mode Switch position (Page 6).
- Replace the batteries (Page 11).
- Adjust the Aux Switch to Normal (page 7).
• SYMPTOM: The fan does not turn on even though the compressor
has energized.
CAUSE: The Fan Switch is not completely in the On or Auto position.
REMEDY: Slide the Fan Switch firmly into the On or Auto position.
• SYMPTOM: Aux Heat does not turn on.
CAUSE: The Aux Heat Switch is set for Lockout.
REMEDY: Consult the Aux Heat section of this manual to slide the
Aux Heat Switch to Normal (Page 7).
• SYMPTOM:The Heating does not attempt to turn on.
CAUSE: The heating setpoint is set too high, the Mode Switch is not
set for Heat, the batteries are too weak, or the Aux Heat Switch is
set for Emergency.
REMEDY: Consult the Normal Operation section in this manual to:
- Raise the heating setpoint (Page 6).
- Correct the Mode Switch position (Page 6).
- Replace the batteries (Page 11).
