LG WT7800C Series Service Manual page 36

LOCKED MOTOR ERROR
Is LE displayed?
Yes
Check the connectors below.
Is the connector disconnected
or disassembled?
(motor hall sensor connector,
motor drive connector)
- Part of main PCB
assembly (GY3)
Motor Drive
- Part of wire
Reconnect
Yes
the connector
(connector /
wire / motor )
- Part of motor
Motor
No
Is rotor magnet cracked?
Magnet
No
Is the resistance values
in the range of 5 to15 Ω?
(U-V, V-W, W-V
:U=1, V=2, W=3)
- After pull out the GY3
connector, check the terminal of
the connector in wire.
Yes
Replace the
MAIN PCB
ASSEMBLY.
36
Replace the
Yes
ROTOR
Replace the
No
STATOR
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