Locked Motor Error - LG WT4801CW Service Manual

LOCKED MOTOR ERROR

Is displayed?
Yes
Check the connectors below.
Is the connector disconnected
or disassembled?
(motor hall sensor connector,
motor drive connector)
- Main PCB Assembly
(YL3, BL6)
Motor Drive
Hall Sensor
- part of wire
Hall Sensor Hall Sensor Hall Sensor
Hall Sensor Hall Sensor Hall Sensor Hall Sensor Hall Sensor Hall Sensor
Hall Sensor Hall Sensor
Hall Sensor Hall Sensor Hall Sensor
Reconnect
Yes
the connector
(connector /
wire / motor)
Motor Drive Motor Drive Motor Drive
Motor Drive Motor Drive
Motor Drive Motor Drive Motor Drive Motor Drive
Motor Drive Motor Drive Motor Drive Motor Drive Motor Drive
- 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 YL3
connector, check the
terminal of the connector in
wire.
Yes
Is hall sensor out of order ?
No
Replace the MAIN PCB
30
Replace
Yes
the ROTOR
Replace
No
the STATOR
Replace
Yes
the Hall
sensor