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•  

 

The main power board assembly has exposed live 120 VAC and live DC voltages. Use care when 

disconnecting connectors during troubleshooting and testing. (Wear electrostatic discharge gloves when 

handling the board. 

•  Unplug the power when handling the board assembly. (Wear electrostatic discharge gloves when handling the 

board. Store the board in an ESD [ElectroStatic Discharge] plastic bag.) 

•  

 

The washer must be empty and the controls must be in the off state.

•  

 

Press and hold the SOAK and CHIME buttons; then press the POWER button. The buzzer will sound twice.

•  

 

Press the Start/Pause button to advance to the subsequent test mode step. 

Number of times the

START/PAUSE

button is pressed

Check Pont

Display Status

None

Main program version and LED check

T1 and main program version

1 time

Display program version and Button check

T2 and display program version

2 time

None

T3

3 time

Inlet valve for bleach detergent turns on.  

(Cold Water)

A and water level frequency (1~10 Level)

4 time

On :67~33 (26.7kHz~23.3kHz) Inlet valve for 

softener dispenser turns on. (Hot water)

The meaning of 67~33 number is 

26.7kHz~23.3kHz really B and water level 

frequency (1~10 Level)

5 time

Inlet valve for J-dispenser turns on.

(Cold Water)

C and water level frequency (1~10 Level)

6 time

Heater check (on heater model)

T4 and water temperature

7 time

Wave force check

T5 and alpha RPM

8 time

Drain pump check

T6 and water level frequency

9 time

Load sensing Check

T7 and the coefficient of load sensing

10 time

Agitate (tub) check

T8 and RPM

11 time

Spin Check

T9 and RPM

12 time

Off

. Unlocks the door

. Turns off all LED

None

Many washing problems involve poor soil and stain removal, residues of lint and scum, and fabric damage. For

satisfactory washing results, follow these instructions.

NOTE: NEVER use bar soap in the washing machine.

Poor soil

removal

Blue Stains

Black or gray

marks on

clothes

Yellow or

brown rust

stains

Lint

Residue or

Detergent

Holes, tears,

or snags

· 

Insufficient detergent

· 

Wash water temperature too low

· 

Incorrect wash cycle

· 

Laundry missorted

· 

Stains not properly pretreated

· 

Undiluted fabric softener 

dispensed directly onto fabric

· 

A buildup caused by the interaction 

of fabric softener and detergent 

can flake off and mark clothes

· 

Not enough detergent

· 

Iron or manganese in water 

supply, water pipes, or water 

heater

· 

Incorrect sorting

· 

Tissues left in pocket

· 

Overloading the washer

· 

Overloading the washer

· 

Undissolved detergent

· 

Excessive detergent

· 

Incorrect use of chlorine bleach.

· 

Unfastened zippers, hooks, 

buckles

· 

Ribs, tears and broken threads

· 

Overloading the washer

· 

Degradation of fabric

· 

Use correct amount of detergent for load size, amount of soil and 

water hardness.

· 

Use WARM or HOT water for normal soil. Different Water 

Temperature may be required according to soil type. (refer to page 10)

·

Reduce load size.

· 

Wash with Heavy or Soak & Heavy wash cycle for heavy soiled 

laundry.

·

Separate heavily soiled items from lightly soiled ones.

· 

Pretreat stain and heavy soil according to directions shown on 

page 15.

·

Pretreat the stain with detergent or a stain removal agent.

· 

Do not overfill fabric softener dispenser and do not pour liquid fabric 

softener directly onto fabric. 

See page 13 for more instructions.

·

Keep the recommendations against Scrud (waxy buildup).

· 

Use correct amount of detergent for load size, soil level,  

and water Hardness.

· 

To restore discolored load of whites, use rust remover safe for 

fabric.

· 

Install nonprecipitating water softener or an iron filter in your 

water supply system for an ongoing problem.

·

Before washing, run water for a few minutes to clear lines.

· Wash lint-producing items, like flannel sheets, towels, and 

the like separately from dark fabrics and fabrics that tend to 
collect lint. Remove all items, including tissues and papers, 
from the pockets of items to be washed. See page 9 for 
sorting information. 

·

Do not overload the washer

·

Do not overload the washer.

· 

Some detergents need to be pre-dissolved, check the 

detergent instructions. Try pre-dissolving the detergent.

·

Increase Water Temperature using HOT water safe for fabric.

·

Use proper amount of detergent.

· 

Never pour chlorine bleach directly on fabric. 

See page 11 for adding liquid bleach.

·

Fasten zippers, hooks, and buckles.

·

Remove objects in pockets. See page 9 for caring before loading.

·

Do not overload the washer.

Pin1 : Hb Pin2 : GN

D

Pin3 : Ha Pin4 : + 

Pin1 : 

W

Pin2 : 

V

Pin3 : 

U

Pin1 : Clutch Motor(output)(120VAC

)

Pin3 : Clutch_Sensing(Input)(120

VA

C)

Pin1 : Common(AC_Live)(120V

AC

)

Pin3 : Drain Pump(output)(120V

AC

)

Pin1 : GN

D

Pin2 : LIDLOCK_SIGNAL(Input) Pin3 : LIDLOCK_CONTROL(Output

)

Pin4 : LID_SW Pin5 : REED_S

W

Pin1 : 16.5

v

Pin2 : LID_SW Pin3 : BZ_OUTPU

T

Pin4 : 

-

Pin5 : BZ_PWM_SMA

RT

Pin1 : Rx Pin2 : 

Tx

Pin3 : GN

D

Pin4 : 

-

Pin5 : 5v Pin6 : 

TEST

Pin1 : NORMAL_CONNECT Pin2 : NORMAL_OPEN Pin4 : COMMO

N

Pin3 : 

Te

mp(input

)

Pin6 : GN

D

Pin2 : S1

Pin4 : GN

D

Pin5 : S2

Pin1 : Sensing Pin 

1

Pin2 : Sensing Pin 

2

IE

OE

dE

dL

FE

tE

PE

LE

No Power

1. Verify the valve is open and water is on. 

2.  Check the filter on inlet valve whether  

clogged with foreign material or not.

3. Check the connector of valve and RD6 on PCBA.

4. Check the testmode (Testmode 3)

5. Check the valve resistance. (0.8-1.2 kΩ)

1.  Check the test mode (Testmode 6)

2.  Check the connector of PCBA or pump or  

connection connector

3.  Check the connection from PCB to pump by tester

4.  Check the pump SPEC (resistance of the coil is  

10-20 Ω) and input voltage on working (120V±5%)

1.  Connect other doorlock switch and check the lid  

sensing by magnet

1. Check the doorlock switch trying locking

2. Check the balance of the lid.

1.  Check the Water level  

(1) Power on and run  

(2) Press the DELAY WASH & EXTRA RINSE

2. Check the valve

1.  Check the connector of PCBA (YL2) or thermistor  

or connection connector

2.  Check the cutted connection from PCB to  

thermister by tester

1.  Check the Presure Sensor (21~23 Ω ±10%) and 

connection

2.  Check the Connector (BL6)

1.  Check the connector of PCBA (YL3, BL6) or  

motor connector or connection connector

2. Check the magnet for Rotor

3.  Check the Rotor Resistance (YL3) 5 to 15 Ω  

(U-V, V-W, W-V :U=1, V=2, W=3)

1. Check the fuse for noise filter and PCBA by tester

2.  Check the IPM  

-.  Check the Short between top switch  

Heatsink and YL3 pin by Tester

1. Turn the tap on.

2. Clean or replace the filter

3. Reconnect or repair the connector

4. Replace the PCBA

5. Replace the inlet valve assembly.

1. Replace the PCBA

2. Reconnect or repair the connector

3. Replace harness

4. Replace pump

1. Replace the doorlock switch or PCBA

1.  If trying, replace the doorlock switch.  

Or not trying replace the PCBA

2. Replace the door or set the balance

1.  If segment is displayed under 10,  

replace the PCBA

2. Replace the valve

1. Reconnect or repair the connector

2. Replace harness

1. Reconnect or repair the connector

1. Reconnect or repair the connector

2. Replace the rotor.

3. Replace the stator.

1.  If the beep sounds, the fuse is OK.  

If no beep, change the noise filter, 

including the fuse. 

2. If beep sound, replace the PCBA.