LG F12A8QDSA Series, Service Manual

Page: 30 / 56

33
NO
Are the resistance of the
Hall Sensor
5~15k Ω ?
Motor Locked Error (LE)
[Pre Check]
• Gentle wash cycles, such as Perm Press, Delicates, Hand Wash, and Wool/Silk should only be used for smaller loads.
Because these cycles are more gentle in tumbling and spinning, putting too much in the drum can register an issue
with the motor. Remove items, reset unit and test with a Rinse/Spin cycle.
• Don’t replace the PCB, when the hall sensor is replaced.
Replace the PCB, when the LE is displayed after replacing the hall sensor.
Is the Connector connected correctly to
the
Main PCB
and the
Motor
?
Is the
Harness
alright ?
YES
NO
YES
YES
YES
YES
NO
Disassemble the Rotor .
Is the
Magnet
of rotor
cracked
or
broken
?
• Ha ~ Common
: 5 ~ 15 k Ω
• Hb ~ Common
: 5 ~ 15 k Ω
Replace the
Main PCB
.
Press the
Power
button &
Start / Pause
button.
Does the Drum stop when the start/pause button is pressed to start the cycle ?
Or Sometimes does the
Drum
rotate
weakly
(under 15rpm)?
Magnet
Ha
Hb
Common
Is the resistance the same
between
Stator
points?
V~U / U~W / W~V : 8~11 Ω
V U W
V U W
Reconnect or repair the
Connector
.
Or replace the Harness .
Replace the
Rotor
.
Replace the Hall Sensor .
Disassemble
hall sensor
carefully.
(Next page)
NO Replace the
Stator
.