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LOCKED

MOTOR

ERROR

7

EEPROM

ERROR

8

POWER

FAILURE

 9

• The connector (3-pin, male, white) in the MOTOR HARNESS

is not connected to the connector (3-pin, female, white) of
STATOR ASSEMBLY.

• The electric contact between the connectors (3-pin, male,

white) in the MOTOR HARNESS and 4-pin, female, white
connector in the MAIN PWB ASSEMBLY is bad or unstable.

• The MOTOR HARNESS between the STATOR ASSEMBLY

and MAIN PWB ASSEMBLY is cut (open circuited).

• The hall sensor is out of order/defective.

• EEPROM is out of order.

Displayed only when the START/PAUSE button is first 
pressed in the Load Test Mode.

• After the power supply is stopped while washing machine is

working, the power is supplied rapidly

8-3. TROUBLESHOOTING WITH ERROR

Is                 displayed?

When you press both
CUSTOM button and
PRE-WASH button
simultaneously,
is the water level frequency
below 24.6 kHz?

(Refer to 7-3.)

Is filter inlet valve clogged
with foreign material?

Is the connector connected to
inlet valve assembly
disconnected or
disassembled?

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

Ω?

(Refer to 9-5 inlet valve
assembly)

Clean or
replace the filter.

Check the AIR
CHAMBER
and the tube
(clogged).

Reconnect or
repair
the connector.

Replace the
INLET VALVE
ASSEMBLY.

Is the voltage of the inlet
valve connector 120 V AC?
(Check the all terminal of
INLET VALVE ASSEMBLY
while the power is on.)

Replace the
INLET VALVE
ASSEMBLY.

Is the connector connected to
MAIN PWB assembly
disconnected or dis-
assembled?(NA4, BL3, BL4)

Reconnect or
repair
the connector.

Is Electrical connection
correct?

(Refer to 9-5 wiring diagram)

Replace the
MAIN HARNESS.

After checking connector,
is the water level frequency
below 24.6 kHz?

(Refer to 7-3)

Replace the MAIN PWB
ASSEMBLY.

[Note] Environmental safety check list
1) No water tap leakage
2) No water tap freeze
3) No entanglement of water supply hose
4) No water shortage
5) No shrinkage on water supply hose due to

a possible misuse of hot and cold water

6) No water supply hose leakage

Check the
PRESSURE
SWITCH.

Is                 displayed?

Is the connector connected
to pump motor assembly
disconnected or
disassembled?

Reconnect or
repair
the connector.

When you press both
CUSTOM button and
PRE-WASH button
simultaneously, is the
water level frequency
below 26.0 kHz?

(Refer to 7-3)

Check the AIR
CHAMBER,
the tube
(clogged),
and press
switch

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

Ω)

(Refer to 9-4 Pump motor
assembly)

Replace the
DRAIN 
PUMP
ASSEMBLY.

Is the voltage between
connectors out of range?
(BL4 pin1~ BL3 pin1)
- After remove Terminal
Position Assurance (TPA)
of connector, check as
follows.
- And if you finish to measure
the valve, You should put
TPA as original form.

- Pump running : 120V±5%
- Stopped Motor/Pump : 0~1V Method
1. Press the Power button, while the SPIN SPEED

button and WASH/RINSES button is pressed
simultaneously.

2. Press Start/Pause button.

: 1 time  

Pump slow-speed running

: 2 times  

Pump mid-speed running

: 3 times  

Pump high-speed running

: 4 times  

Stop the Motor/Pump

[Note] Environmental check list
1) The drainage hose must not stay in a lower position.
2) The drainage hose must not be bent or

clogged in any way due to the surrounding
physical configuration.

3) The drainage hose must not get frozen at all times.
4) The drainage pump must not have any improper

substance or material inside that may cause
a machine breakdown.

Replace the
MAIN PWB
ASSEMBLY.

Is                 displayed?

Is the connector connected
to heater disconnected or
disassembled?

Reconnect or
repair
the connector

Is Check heater
resistance out of range?
(12~18 

Ω)

(Refer to 9-6 Heater
assembly.)

Replace the
HEATER
ASSEMBLY

Is thermistor resistance
out of range?
(about 39.5 k

Ω at 30

°C

)

(Refer to 9-7 thermistor
assembly)

Replace the
THERMISTOR
ASSEMBLY

Check the trans of water
infiltration into thermistor
terminal.
- Does the water infiltrate

thermistor terminal?

Replace the
THERMISTOR
ASSEMBLY

Is the connector connected to
thermistor disconnected or
disassembled?

Reconnect or
repair
the connector