Circuit diagram:
Malfunction display:
1 |
Indoor air temp sensor open/short |
8-segment display ‘F1’, with STATUS light flash 1 |
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times and off 3 sec, repeat |
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2 |
Indoor coil sensor open or short |
8-segment display ‘F2’, with STATUS light flash 2 |
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times and off 3 sec, repeat |
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3 |
Outdoor coil sensor open/short |
8-segment display ‘F4’, with STATUS light flash 3 |
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times and off 3 sec, repeat |
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4 |
Freeze Guard protection |
8-segment display ‘FP’ |
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5 |
Indoor coil freeze protection |
STATU light flash 5 times and off 3 sec, repeat |
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6 |
Outdoor coil high temp protection |
STATU light flash 6 times and off 3 sec, repeat |
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7 |
Defrost (heat pump type) |
STATU light flash 7 times and off 3 sec, repeat |
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8 |
Indoor coil high temp protection |
STATU light flash 8 times and off 3 sec, repeat |
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9 |
Thermostat wiring error |
STATU light flash 9 times and off 3 sec, repeat |
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10 |
High pressure protection (optional) |
8-segment display ‘E1’, (the highest display grade) |
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66161287
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