Panasonic WH-MHF12G9E8 Service Manual page 120
(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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16.5.32 Power Factor Correction (PFC) Abnormality (F41)
Malfunction Decision Conditions:
During operation of heating, when the PFC protection circuitry in the outdoor unit PCB (main) senses abnormal
high DC voltage level.
Malfunction Caused:
1
Power supply surge.
2
Compressor windings not uniform.
3
Faulty outdoor unit PCB (main).
Abnormality Judgment:
Continue 4 times in 10 minutes.
120
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