Read LG WM2050CW Service Manual online
LOCKED MOTOR ERROR
Is displayed?
Check the connectors below.
Is the connector disconnected
or disassembled?
(motor hall sensor connector,
motor drive connector)
- part of main PWB
Is the connector disconnected
or disassembled?
(motor hall sensor connector,
motor drive connector)
- part of main PWB
assembly (RD4, NA1)
Reconnect
the connector.
(connector /
wire / motor)
the connector.
(connector /
wire / motor)
Replace
the ROTOR
the ROTOR
Yes
Yes
Motor Drive (RD4)
Is rotor magnet cracked?
Hall sensor (NA1)
Motor Drive Hall Sensor
- part of wire
- part of motor
Motor
Yes
No
Yes
Yes
Magnet
Replace
the STATOR
the STATOR
Is the resistance values
in the range of 5 to 15
in the range of 5 to 15
Ω?
(U-V, V-W, W-V
:U=1, V=2, W=3)
- After pull out the RD4
:U=1, V=2, W=3)
- After pull out the RD4
connector, check the
terminal of the connector
in wire. (Red 3P, male)
terminal of the connector
in wire. (Red 3P, male)
No
Replace
the Hall
sensor
the Hall
sensor
Is hall sensor out of
order?
order?
(Refer to 9-3
Stator assembly/Hall
sensor.)
sensor.)
Yes
No
Replace the
MAIN PWB
ASSEMBLY
MAIN PWB
ASSEMBLY
Check the IPM in the
controller.
controller.
No
25
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