Gree GWH18MC-K3DNA2G - Page 61

58
Installation and Maintenance
Service Manual
(7) Malfunction of PFC Protection (HC)
Main check point:
Whether power supply is normal?
Check ow chart:
Start
Check whether power supply is
normal
Is power abnormal?
Replace main board of
outdoor unit
End
Turn on the unit again
after the power is
resumed
Yes
No