26
Service Manual
(2) PFC protection malfunction
Main checking points:
●
●
If the power supply is normal;
Check if the connection wire of induction is connected well and if the induction is broken;
Flow chart:
Start
Check If the power supply is normal
Power supply is abnormal
yes
yes
yes
no
no
no
Check if the outdoor induction is broken
The induction is broken Replace the induction
Replace the outdoor
mainboard
Malfunction is eliminated
End
Turn on the unit after the
power supply resumes to
normal situation
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