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Is water supply shut-off?

Open the tap.

Check the AIR CHAMBER
and the tube clogged 
with impurity. 

Replace the INLET VALVE
ASSEMBLY.

Replace the MAIN PWB
ASSEMBLY

Clean the filter.

Is the tap opened?

Is the inlet valve filter clogged with impurity?

When you press both Rinse button and Spin button
simultaneously, is the water level frequency below
240?

Is resistance between each terminal of INLET
VALVE ASSEMBLY is 2~8 kΩ?

Check the voltage of the inlet valve connector 
AC 220-240V~.
(Refer to 7-2 QC TEST MODE)

Refer to 

NO WATER SUPPLY

Check the wiring on the
dispenser.

Clean the drawer.

Put the detergent in the

correct position 

: Detergent 

Is water supplied?

Is detergent put in the correct compartment of
the drawer?

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

Is the detergent hardened?

Refer to

NO WATER SUPPLY

Check the wiring on the 
dispenser.

Clean the cap and
drawer.

Put it in the correct
compartment.

Is water supplied?

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

Is softener put in the correct compartment of the
drawer?

Is the softener cap clogged?

Fix the bolt tightly.

Replace the STATOR
ASSEMBLY or ROTOR
ASSEMBLY.

Is the motor bolt loosened?

Is there friction noise from the motor?

Spin

Rinse

Replace the
S.PRESSURE SWITCH
ASSEMBLY

Replace the MAIN PWB
ASSEMBLY

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

AC 220-240V

After completely drained and turn
off water, the washing machine is
operated under the [Sanitary] condition.
Check the voatage between two pins is the
Voltage 0 V AC?

(1)

(2)

Repair the DRAIN HOSE
ASSEMBLY.

Remove foreign material.

Reconnect or repair the
connector

Repair the DRAIN PUMP
ASSEMBLY.

Repair the MAIN PWB
ASSEMBLY.

Is the drain hose twisted or frozen?

Is the connector disconnected, disassembled?

Is the coil of the drain pump cut-off?
(resistance of coil is 80~15

0Ω

)

Is the impeller of the drain pump clogged?

When checking voltage between connectors
( ,  )on spinning, is the voltage 220-240V
as the figure?

Replace the MAIN PWB
ASSEMBLY

Normal

Replace the
HEATER ASSEMBLY

AC 220-240V

After power off, is the resistance of wire
(YELLOW-BLACK) connectors between
10Ω ~ 30Ω?

After power off and the heater terminal is
disconnected, is the resistance 10Ω ~ 30Ω?

Check if inlet hose is
connected to a hot
faucet ; otherwise, replace
PWB ASSEMBLY(Main)

Replace Thermister

Push the THERMISTOR
tightly to the rubber.

When pressing Water Temp. during, is the
displayed temperature is over 10
higher than the selected temp?

Is the resistance between Thermistor
Comectors 2.5k

Ω ~ 180kΩ

?

When checking THERMISTOR on the tub is the
THERMISTOR loosened above 2mm from
the rubber?

When checking the voltage between
connector during whites washing. is the
voltage 220-240V~?