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17.5.33. Cooling High Pressure Overload Protection (F95)
Malfunction Decision Conditions:
During operation of cooling, when pressure 4.0MPa 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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