60
Installation and Maintenance
Service Manual
2. PFC protection malfunction, capacity charging malfunction
Main checking points:
If the mainboard is broken;
If the wiring of the induction is connected well and if the induction is broken;
Flow chart:
Start
Check if power supply is normal
Power supply is abnormal?
Turn on the unit
after power supply
resumes normal
Replace the outdoor
mainboard
End
Yes
No
For 14/18K
9. Maintenance
