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If you press the START/PAUSE button when an error is displayed, any error except         will disappear
and the machine will go into the pause status.
In case of         ,         ,         if the error is not resolved within 20 seconds, or the in case of other errors,
if the error is not resolved within 4 minutes, power will be turned off automatically and the error code
will blink. But in the case of         , power will not be turned off.

8-1. SAFETY CAUTION

There’s built-in AC 120V and DC power in output terminal of PWB assembly in common. Be careful
electric shock when disconnecting parts while trouble shooting. (Wear Electro Static Discharge gloves
when working.)
After cutting off the power when changing PWB assembly, disconnect or assemble.
Be careful static when handling PWB assembly, and use Electro Static Discharge plastic pack when
delivering or keeping it.

WATER INLET

ERROR

• Correct water level (24.6kHz) is not reached within 

8 minutes after water is supplied or it does not reach

the preset water level within 20 minutes.

UNBALANCE

ERROR

• The load is too small.

• The appliance is tilted.

• Laundry is gathered to one side.

• Non distributable things are put into the drum.

DRAIN ERROR

• Not fully drained within 10 minutes.

OVERFLOW ERROR

• Water is overflowing. 

(water level frequency is over 21.3kHz).

If           is displayed, the drain pump will operate 

to drain the water automatically.

PRESSURE SENSOR

ERROR

• The PRESSURE SENSOR ASSEMBLY is out of

order.

• When water level frequency maintain condition of

below 10 kHz and over 30 kHz.

DOOR OPEN ERROR

• Door not all the way closed.

• Loose electrical connections at Door switch and

PWB Assembly.

• The DOOR SWITCH ASSEMBLY is out of order.

HEATING ERROR

• The THERMISTOR is out of order.

8. TROUBLESHOOTING

8-2. ERROR MODE SUMMARY

LOCKED MOTOR

ERROR

EEPROM ERROR

• 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.

POWER FAILURE

• After the power supply is stopped while washing

machine is working, the power is supplied rapidly. 

Remarks

Result

(tolerance 

5%)

At 86

℉

 (30

℃

)

At 104

℉

 (40

℃

)

At 140

℉

 (60

℃

)

At 158

℉

 (70

℃

)

At 203

℉

 (95

℃

)

At 221

℉

 (105

℃

)

39.5 k  

Ω

26.1 k 

Ω

12.1 k 

Ω

8.5 k

Ω

3.8 k 

Ω

2.8 k 

Ω

Remarks

Result

(tolerance 

5%)

At 86

℉

 (30

℃

)

At 104

℉

 (40

℃

)

At 140

℉

 (60

℃

)

At 158

℉

 (70

℃

)

At 203

℉

 (95

℃

)

At 221

℉

 (105

℃

)

At 241

℉

 (1

16

℃

)

At 266

℉

 (130

℃

)

At 293

℉

 (145

℃

)

At 320

℉

 (160

℃

)

At 356

℉

 (180

℃

)

39.5 k  

Ω

26.1 k 

Ω

12.1 k 

Ω

8.5 k

Ω

3.8 k 

Ω

2.8 k 

Ω

2.1 k 

Ω

1.4 k 

Ω

1.0 k 

Ω

0.7 k 

Ω

0.4 k 

Ω

Pin1: 16.5 V

Pin4: wash thermistor

Pin6: wash heater

RD.

pin1: U

pin2: V

pin3: W

NA.

pin1: +

pin2: Hb

pin3: Ha

pin4: GND

NA. pin1: PTC

pin2: PTC

NA4.

pin3: main wash

BL.

pin1: common

pin2: AG 

valve

NA5.

pin2: pre valve

pin3: bleach

pin4: hot valve

Result

T

est Points

5-15 

Ω

5-15 

Ω

5-15 

Ω

(1) to (2)

(2) to (3)

(3) to (1)

Result

T

est Points

8-12 k 

Ω

8-12 k

Ω

10-15 Vdc

10 Vdc

10 Vdc

Remarks

V

oltage Input

Pulsing Signal

Pulsing Signal

(1) to (2)

(1) to (3)

(1) to (4)

(2) to (4)

(3) to (4)

Result

T

est Points

700-1500 

Ω

60-90 

Ω

Infinity

120 V

a

c

Remarks

At 77

℉

(25

℃

)

At 77

℉

(25

℉

)

V

oltage Input

(2) to (4)

(3) to (4)

(4) to (5)

(2) to (4)

Drain pump: 10-20 

Ω

Circulation pump: 18-30 

Ω

Result

T

est Points

0 

Ω

0 

Ω

WH (1) to RD (3)

WH (3) to RD (1)

12   -18 

0   -1.2 k

BL, BK. pin4: V

ac (input)

BL.

pin3: steam generator

heater (input)

BK.

pin3: wash heater (input)

pin3: steam generator/

YL.

wash heater (output)

pin4: V

ac (output)

Ω

Ω

Ω

Ω

YL.

pin1: GND

pin2: S

pin4: L

pin3: GND

pin4: 12V

pin5: 5V

BL. pin3: circulation pump

NA. pin1: drain pump 

BL. pin3 to NA. pin1

1. Pump running: 120V 

5%

2. Stopped Motion Pump: 0-1V

8-3. TROUBLESHOOTING SUMMARY

Is            displayed?

When you press both
WASH/RINSE button and
SOIL LEVEL button
simultaneously,
is the water level frequency
below 24.6 kHz?

(Refer to 7-4.)

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?(NA2, NA4, BL3)

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 7-4.)

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.

8-4. TROUBLESHOOTING WITH ERROR