F1407ADSP - LG Washing Machine Service Manual (repair manual). Page 25

NO

YES

YES

YES

NO

NO

NO

YES

(1)

Check the S.PRESSURE SWITCH
ASSEMBLY or HOSE (Pressure). 
If the problem is on the
S.PRESSURE SWITCH
ASSEMBLY or the HOSE, replace
the S.PRESSURE SWITCH
ASSEMBLY or the HOSE.

Normal

Correct the connector.

Replace the STATOR
ASSEMBLY

Check on the spinning, is the frequency of the
water level 248 or more. The frequency can be 
checked by pressing the Temp. and Spin buttons at
the same time on the program.

When pressing Temp., Spin and POWER buttons at
the same time after power off, press the  Start/Pause
button 1 times, is the drum low speed spin?

Is it disconnected, or disassembled?
[Red:3pin(1), GY:4pin(2)]

Check the motor connector, is the resistance of

the terminal same as the figure?

Resistance of terminal: 

①

①~

~②

② / ②

②~

~③

③ / ③

③~

~①

① : About 5Ω

Ω~15Ω

Ω

Replace the MAIN PWB ASSEMBLY

①

① ②

② ③

③

Does the spring of Latch Hook actuate?

Is there clicking sound once or twice when the
START/ PAUSE button is pressed to start the cycle?

Is DOOR SWITCH ASSEMBLY broken?

Replace Door Assembly.

Check the DOOR SWITCH
ASSEMBLY Connector and
MAIN PWB ASSEMBLY
[Black(1), Brown/Yellow(2)].

Replace the DOOR
SWITCH ASSEMBLY.