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7. DC fan malfunction
Main checking points:
If the outdoor fan is blocked by foreign objects;
The connection wire of DC fan is connected reliably? If it is loose?
Flow chart:
Start
yes
yes
no
no
End
Replace the outdoor
mainboard
If the connection wire
of DC fan is loose?
Check if the
outdoor fan is blocked by
foreign objects?
Turn on the unit
after removing the
foreign objects
Turn on the unit after
the connection wire
is properly connected
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