Panasonic WH-MHF12G9E8 Service Manual page 125
(mono bloc) air-to-water heat pump system
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Also See for WH-MHF12G9E8:
- Planning and installation manual (117 pages) ,
- Operating instructions manual (100 pages)
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16.5.37 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).
125
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