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1

Dry

Dry

Is water supply shut-off?

Is the tap opened?

When you press both Spin button and Dry button
simultaneously, is the water level frequency below
246?

Is the inlet valve filter clogged?

Is resistance between each terminal of INLET
VALVE ASSEMBLY 0.8-1.2 

k

Ω

? 

Verify the voltage of the inlet valve connector is 

110V a.c 60Hz.

(Refer to 7-2 QC TEST MODE)

Is water supplied?

Are receptacles correctly connected to the
terminals of the INLET VALVE ASSEMBLY?

Has detergent been put in the correct compartment
of the dispenser?

Is the detergent caked or hardened?

Open the tap.

Check the AIR CHAMBER
and the tube (clogged). 

Clean the filter.

Replace the INLET VALVE
ASSEMBLY.

Check electrical connection.
Replace the MAIN PWB
ASSEMBLY.

Refer to 

^NO WATER SUPPLY_

Check the wiring.

Put the detergent in the
correct place. 

Clean the dispenser.

Prewash

Bleach

Main wash

M

A

X

M

A

X

M

A

X

Secure the bolt.

Replace the STATOR
ASSEMBLY or ROTOR
ASSEMBLY.

Refer to

^NO WATER SUPPLY_

Check the wiring on the 
dispenser.

Put it in the correct
compartment.

Clean the Cap and
Container.

Is the motor bolt loosened?

Is there friction noise coming from the motor?

Is water supplied?

Are the plugs correctly connected to the terminals of
the INLET VALVE ASSEMBLY?

Is liquid detergent/softener/bleach put in the correct
compartment of the drawer?

Is the liquid detergent/softener/bleach cap clogged?

NO

YES

YES

YES

YES

NO

NO

NO

NO

YES

YES

NO

110V a.c

110V a.c

Replace the
SENSOR SWITCH
ASSEMBLY.

Replace the MAIN PWB
ASSEMBLY.

Repair the DRAIN HOSE 
ASSEMBLY.

Remove foreign material.

Reconnect or repair the
connector

Replace the DRAIN
PUMP ASSEMBLY.

Replace the MAIN PWB 
ASSEMBLY.

When pressing Spin and Dry at the same time after
draining, is  the water level frequency 255?  
When pressing Spin and Dry buttons at the same time
while washing, is the water level frequency between
230 - 243 ?

Check the voltage between two pins while pressing
the POWER button. Is the voltage  110V a.c?

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 too high or low?
(resistance of the coil is 10-20 

Ω)

When checking voltage between connectors during

spin, is the voltage 110V a.c as in the figure? 

(1)

Temp.

110V a.c

Push the THERMISTOR
tightly to the rubber.

When checking the THERMISTOR on the tub, 

is the THERMISTOR loose?