Panasonic WH-MHF12G9E8 Service Manual page 112
(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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16.5.24 Output Over Current Detection (F23)
Malfunction Decision Conditions:
During operation of heating, when outdoor DC current is above 40.1 ± 5.0A (for: UD07~09CE) OR 44.7 ± 5.0A
(for: UD12~16CE) is detected by the IPM DC Peak sensing circuitry in the outdoor unit PCB (main).
Malfunction Caused:
1
Faulty outdoor unit PCB (main).
2
Faulty compressor.
Abnormality Judgment:
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112
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