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15.4.19
F90 (Power Factor Correction Protection)
Malfunction Decision Conditions
•
During startup and operation of cooling, when Power Factor Correction (PFC) protection circuitry at the outdoor
unit main PCB senses abnormal high DC voltage level.
Malfunction Caused
•
DC voltage peak due to power supply surge.
•
DC voltage peak due to compressor windings not uniform.
•
Faulty outdoor PCB.
Troubleshooting
121
- Quick Links:
- Indoor Unit
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Troubleshooting
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