Gree GWH12MB-K3DNE3G Service Manual page 52

Service Manual
11.PFC (correction for power factor) malfunction (outdoor unit malfunction)
Main detection points:
● Check if power plug is connected well with the socket
● Check if the reactor of outdoor unit is damaged?
Malfunction diagnosis process:
start
If power plug is connected
well with the socket
N
Check the connection wire
between reactor mainboard
and situation of connection
If there is short circuit or the
connection wire is loose?
N
Check the surface of reactor coil
If it is damaged?
N
Replace outdoor
mainboard AP1
End
Installation and Maintenance
Connect the plug correctly
Y
Reconnect the wire or
replace the connection
Y
wire according to the
wiring diagram.
Replace the reactor
Y
Is the malfunction
eliminated?
N
Power on and
restart the unit
N
Power on and
Is the malfunction
restart the unit
N
Is the malfunction
eliminated?
eliminated?
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