53
Installation and Maintenance
Service Manual
Start
Check If the power supply is normal
Power supply is abnormal
Check if the outdoor induction is broken
noitcudni eht ecalpeRnekorb si noitcudni ehT
Replace the outdoor
mainboard
Malfunction is eliminated
End
Turn on the unit after the
power supply resumes to
normal situation
Yes
Yes
Yes
No
No
No
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