DIGITAL CONTROL DIAGNOSTICS
The chart below lists malfunctions and their description.
1 | Indoor air temp sensor open/short | Display ‘F1’, with STATUS light flash |
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2 | Indoor coil sensor open or short | Display ‘F2’, with STATUS light flash |
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3 | Outdoor coil sensor open/short | Display ‘F4’, with STATUS light flash |
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4 | Freeze Guard protection | Display ‘FP’, with STATUS light flash |
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5 | Indoor coil high temp protection | STATUS light flash 8 times and off 3 sec, repeat |
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6 | Outdoor coil high temp protection | STATUS light flash 6 times and off 3 sec, repeat |
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7 | Indoor coil freeze protection | STATUS light flash 5 times and off 3 sec, repeat |
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8 | Defrost (heat pump type) | STATUS light flash 7 times and off 3 sec, repeat |
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9 | Thermostat wiring error | STATUS light flash 9 times and off 3 sec, repeat |
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