WD-90KFP - LG Washing Machine Service Manual (repair manual). Page 23

Wash

Rinse

PWB ASSY(Main)

AC 110V

(1)

(2)

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 Wash and Rinse at the same time
after draining, is  the water level frequency 248 ~ 262
or more?  
When pressing Rinse, Spin buttons at the same
time while wash, is the water level frequency
between 230 - 243?

Checking voltage between two pins as press the
POWER button is the voltage  110V?

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 )

When checking voltage between connectors

( ,  )on spinning, is the voltage 110V as the

figure?