Panasonic WH-SDF09C3E5 Service Manual page 124
Air-to-water heatpump
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Also See for WH-SDF09C3E5:
- Service manual (146 pages) ,
- Design handbook (132 pages) ,
- Operating instructions manual (92 pages)
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17.5.29 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.
124
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