AIR-TO-WATERHEATPUMP MAINTENANCE
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3.1.4 Abnormal Noise of PFC Inductor
Generally, the continuous and minute sound of inductor is normal. Abnormal noise of
PFC inductor refers to discontinuous and obvious noise. The reasons may be:
z PFC malfunction
z abnormal output of driving
Fig.3.1.4 Flowchart of PFC inductor abnormal noise diagnosis
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