WM-128NW - LG Washing Machine Service Manual (repair manual). Page 31

Are the resistance of the 

5~15kΩ?

[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 

connected correctly to 

the 

and the 

?

Is the 

alright ?

Disassemble the 

.

Is the 

of rotor cracked or broken?

: 5 ~ 15 kΩ

: 5 ~ 15 kΩ

Replace the 

.

Press the 

button & 

button.

Does the

stop when the start/pause button is pressed to start the cycle ?

Or Sometimes does the 

rotate weakly (under 15rpm)?

Magnet

Ha

Hb

Common

Is the resistance the same
between 

points?

V~U / U~W / W~V : 8~11Ω

Reconnect or repair the 

.

Or replace the 

.

Replace the 

.

Replace the 

.

Disassemble 

hall sensor carefully. 

Replace the 

.