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16.5.22 Compressor Overheating (F20)
Malfunction Decision Conditions:
During operation of cooling and heating, when temperature above 112°C is detected by the compressor tank
temperature sensor.
Malfunction Caused:
1 Faulty compressor tank temperature sensor.
2 2/3 way valve closed.
3 Refrigerant shortage (refrigerant leakage).
4 Clogged expansion valve or strainer.
5 Faulty outdoor unit PCB (main).
6 Faulty compressor.
Abnormality Judgment:
Continue 4 times in 30 minutes.
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