Panasonic WH-MDC09C3E8 Service Manual page 107
Monobloc air-to-water heatpump system
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Also See for WH-MDC09C3E8:
- Service manual (139 pages) ,
- Operating instructions manual (92 pages) ,
- Design handbook (132 pages)
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16.5.28 Power Factor Correction (PFC) Abnormality (F41)
Malfunction Decision Conditions:
During operation of cooling and 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.
107
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