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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, or the batteries are too weak.
REMEDY: Consult the Normal Operation section in this manual to:
- Lower the cooling L setpoint (Page 6).
- Correct the Mode Switch position (Page 6).
- Replace the batteries (Page 10).
• 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:The Heating does not attempt to turn on.
CAUSE: The heating setpoint is set too high, the Mode Switch is not set
for Heat, or the batteries are too weak.
REMEDY: Consult the Normal Operation section in this manual to:
- Raise the heating R setpoint (Page 6).
- Correct the Mode Switch position (Page 6).
- Replace the batteries (Page 10).
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