WD-12331AD - LG Washing Machine Service Manual (repair manual). Page 23

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MAIN PWB ASSEMBLY

MAIN PWB ASSEMBLY

220-240V

2 1

Replace the

S.PRESSURE SWITCH

ASSEMBLY

Replace the MAIN PWB
ASSEMBLY

Repair the DRAIN HOSE 
ASSEMBLY.

Remove foreign
material.

Reconnect or repair the
connector

Repair the DRAIN PUMP 
ASSEMBLY.

Repair the MAIN PWB 
ASSEMBLY.

When pressing Rinse Hold after draining, is  the
water level frequency 248 ~ 262 or more?  
When pressing Rinse Hold while wash, is the
water level frequency between 230 - 245?

Checking voltage between two pins as press
the POWER button is the voltage  220-240V~?

Is the drain hose twisted or frozen?

Is the impeller of the drain pump clogged?

Is the connector disconnected, disassembled?

Is the coil of the drain pump cut-off?

(resistance of coil is 80~150

Ω)

When checking voltage between connectors

(

, 

)on spinning, is the voltage 220-240V~ 

as the figure?