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When pressing Time Delay and Rinse at the same
time after draining, is the water level frequency 255?
When pressing Time Delay and Rinse 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 220-240V AC?

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 220-240V AC as in the figure?

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 checking the voltage between
connector during whites washing.
Is the voltage 220-240V AC?

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

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

When pressing Temp. button is the displayed
temperature over 10

higher than the

selected temperature?

Is the resistance between 

and 

of Connector (1) 2.5-180

?

When checking the THERMISTOR on the tub,
is the THERMISTOR loose?

Replace the MAIN
PWB ASSEMBLY

Normal

Replace the
PWB HARNESS.

Check if inlet hose is
connected to a hot
faucet; otherwise,
replace MAIN PWB
ASSEMBLY.

Check electrical connection.
Replace THERMISTOR.

Push the THERMISTOR
tightly to the rubber.

Is the impeller of the drain pump clogged?

Remove foreign material.

Remove foreign material.

Reconnect or repair
the connector.

Replace PUMP MOTOR
ASSEMBLY.

Replace the MAIN PWB
ASSEMBLY.

Are the Hose Connector and/or Hose clogged?

Is the connector disconnected, disassembled?

Is the coil of the right side of drain pump open
or short circuited? (Coil R is 18-30 Ω)

When checking voltage between the
connectors during spin, is the voltage 220-240V
AC, as the figure?

(1)

(1)

(2)

Rinse

Spin

Check during spin if the frequency of the water
level is 248 or more.

When pressing Rinse, Spin, and Power buttons
at the same time after power, press the
START/PAUSE button 2 times in QC Test mode,
is the drum spinning at low speed?

Is it disconnected, or disassembled?
[Red: 3pin (1), NA: 4pin (2)]

Resistance of terminal:

About 5Ω -15Ω

Check the motor connector, Is the resistance of
the terminal the same as the figure?
MOTOR TERMINAL

Replace the MAIN PWB ASSEMBLY

Does the spring of Latch Hook actuate?

Is there clicking sound once or twice when the
START/PAUSE button is pressed to start the cycle?

Is DOOR SWITCH ASSEMBLY broken?

Check the SENSOR SWITCH
ASSEMBLY or HOSE (Pressure).
If the problem is on the SENSOR
SWITCH ASSEMBLY or the
HOSE, replace the SENSOR
SWITCH ASSEMBLY or the
HOSE.

Normal

Correct the connection.

Replace the STATOR
ASSEMBLY

Replace Door Assembly.

Check the DOOR SWITCH
ASSEMBLY Connector and
MAIN PWB ASSEMBLY
(Red 3 pin, Yellow 4 pin and
white 3 pin connector (1)).

Replace the DOOR
SWITCH ASSEMBLY.