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2.4.4.9. P0 malfunction
P0 display
Temperature protection of
compressor top
Whether compressor
operates?
Yes
Whether refrigerant
circulation volume is
normal?
No
Charge refrigerant
Whether abnormality is the
same after gas charging?
No
Check refrigerant system
(such as clogging of capillary
etc.)
Electrical Control System
Whether the connection is
No
good?
Yes
Whether protector is normal? If
protector is normal,resistance = 0
Yes
Replace the outdoor main PCB
Troubleshooting
No
Reconnect and retest.
No
Replace the protector.
135
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