WD-8015C - LG Washing Machine Service Manual (repair manual). Page 22

PWB ASSEMBLY

PWB ASSEMBLY

1

2

Replace the sensor 
(pressure).

Replace the PWB
Assembly.

Repair drain hose

Remove foreign
material.

Reconnect or repair the
connector

Replace the pump
assembly

Replace the PWB 

When pressing [Spin] and [Temp.] at the same
time after draining, is  the water level frequency
252 or more?  
When pressing  [Spin] [Temp.] buttons at the
same time while wash, is the water level frequency
between 230 - 245V~?

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 drain pump cut-off?
(resistance of coil is 90~160Ω)

When checking voltage between connectors
(

, 

)on spinning, is the voltage 

220 - 240V~  as the figure?

HEATING WITHOUT WATER

DRAIN MALFUNCTIONING