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17.5.33 Cooling High Pressure Overload Protection (F95)
Malfunction Decision Conditions:
During operation of cooling, when pressure 4.0 MPa and above is detected by outdoor high pressure sensor.
Malfunction Caused:
1
Dust accumulation in the outdoor unit heat exchanger.
2
Air short circuit at outdoor unit.
3
2 way valve closed.
4
Faulty outdoor unit fan motor.
5
Clogged expansion valve or strainer.
6
Excessive refrigerant.
7
Faulty outdoor high pressure sensor.
8
Faulty outdoor unit PCB (main).
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