Gree GWH12UB-K3DNA4F Service Manual page 69

6. 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
No
Check the connection wire
between reactor mainboard
and situation of connection
If there is short circuit or the
connection wire is loose?
No
Check the surface of reactor coil
If it is damaged?
No
Replace outdoor
mainboard AP1
End
66
Connect the plug correctly
Y
Yes
Reconnect the wire or
replace the connection
Y
Yes
wire according to the
wiring diagram.
Replace the reactor
Y
Yes
Is the malfunction
eliminated?
N
No
Power on and
restart the unit
N
No
Power on and
Is the malfunction
restart the unit
N
No
Service Manual
Is the malfunction
eliminated?
eliminated?
Installation and Maintenance