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(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:
(3) Capacity charging malfunction
Main checking points:
●
If the mainboard is broken;
●
If the wiring of the is broken
No
Start
Check If the power supply is normal
Power supply is abnormal
Check if the outdoor induction is broken
The induction is broken
Replace the outdoor mainboard
End
Turn on the unit after the
power supply resumes to
normal situation
Replace the induction
Malfunction is eliminated
No
Yes
No
Yes
Yes
Energize the unit and wait for 1min
Test the voltage between the two ends of the electrolytic
capacitor with the DC shift of the universal meter
The voltage is above 100V
Check if the induction wiring is
loose or the induction is cut off
The induction is cut off
or the wiring is loose
Replace the outdoor mainboard
End
The detection circuit of
the outdoor mainboard
has malfunction
Replace the outdoor
mainboard
Replace the induction or
reconnect the loose wire
Malfunction is eliminated
Yes
Yes
Yes
No
No
No
