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NO

YES

NO

NO

YES

NO

YES

YES

NO

NO

YES

YES

YES

NO

NO

NO

YES

Wiring diagram

Is water supply shut-off?

Is the tap opened?

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

Is the inlet valve filter clogged with impurity?

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

kΩ

? 

Check the voltage of the inlet valve connector 

120-127V~.

(Refer to 7-2 QC TEST MODE)

Is water supplied?

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

Is detergent put in the correct compartment of
the drawer?

Is the detergent caked or hardened?

Open the tap.

Check the AIR CHAMBER
and the tube clogged 
with impurity. 

Clean the filter.

Replace the INLET VALVE
ASSEMBLY.

Replace the MAIN PWB
ASSEMBLY

Refer to 

NO WATER SUPPLY

Check the wiring on the

dispenser.

Put the detergent in the

correct position 

: Detergent 

Clean the drawer.

MAIN

WASH

SOFTENER

LIQUID
BLEACH

YES

YES

NO

NO

NO

NO

YES

YES

YES

YES

Wiring diagram

MAX

max

Fix the bolt tightly.

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
Drawer.

Is the motor bolt loosened?

Is there friction noise from the motor?

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?

OPTION

SPIN

NO

YES

YES

YES

YES

NO

NO

NO

NO

YES

YES

NO

PWB ASSEMBLY (Main)

AC 120-127V

(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 OPTION and SPIN at the same time
after draining, is  the water level frequency 248 ~ 262 or
more?  
When pressing SPIN, DRY 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  120-127V~?

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 80~150Ω)

When checking voltage between connectors
( ,  )on spinning, is the voltage 120-127V~ 
as the figure?

TEMP.

NO

YES

YES

NO

When checking the voltage between
connector during whites washing. is the
voltage 120-127V?

Replace the MAIN PWB
ASSY

YES

NO

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

When pressing WATER TEMP. during, is the
displayed temperature is over 10ûC 
higher than the selected temperature?

Is the resistance between Thermistor
Comectors 2.5k ~ 180k ?

Replace the
HEATER ASSEMBLY

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

Replace Thermister

NO

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

Normal

NO

YES

RED

YELLOW

1 2 3

YES

AC 120-127V

(1)

Push the THERMISTOR
tightly to the rubber.

When checking THERMISTOR on the tub is the

THERMISTOR loosened above 2mm from 

the rubber?