Lg Washing Machine F1256Qd Users Manual 006A_080910

F1256QD to the manual 0906d7f8-a0e4-4947-aeab-adde60861f17

2015-01-26

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WASHING MACHINE
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLE
CORRECTLY BEFORE OFFERING SERVICE.

MODEL : F1*20TD(1~9) / F1*22TD(1~9)/F1*56*D/WD-*0690TDK

FEB. 2007 PRINTED IN KOREA

P/No.: MFL30574749

CONTENTS
1. SPECIFICATIONS ............................................................................................................................. 3
2. FEATURES & TECHNICAL EXPLANATION ..................................................................................... 4
3. PARTS IDENTIFICATION ................................................................................................................. 6
4. INSTALLATION .................................................................................................................................. 7
5. OPERATION ................................................................................................................................... 12
5-1. F1*22TD(1~9) .......................................................................................................................... 12
5-2. F1*20TD(1~9) .......................................................................................................................... 14
6. WIRING DIAGRAM / PCB LAYOUT / PROGRAM CHART ............................................................ 16
7. TROUBLESHOOTING ......................................................................................................................19
7-1.BEFORE PREFORMING SERVICE ......................................................................................... 19
7-2.LOAD TEST MODE .................................................................................................................. 19
7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY ............................................................. 19
7-4.ERROR DISPLAY ..................................................................................................................... 20
7-5.TROUBLESHOOTING WITH ERROR ..................................................................................... 21
• IE (Water Inlet Error) .............................................................................................................. 21
• UE (Unbalanced Error) ........................................................................................................... 22
• OE (Water Outlet Error) .......................................................................................................... 23
• FE (Flow over Error) ............................................................................................................... 25
• PE (Pressure Sensor S/W Error) ............................................................................................ 26
• DE (Door open Error) ............................................................................................................. 27
• tE (Thermistor (Heating) Error) ............................................................................................... 28
• LE (Motor Lock Error) ............................................................................................................. 29
8. TROUBLESHOOTING WITHOUT ERROR CODES ...................................................................... 31
• PF (Power Failure or no power) ............................................................................................. 31
• Vibation & Noise in spin ......................................................................................................... 32
• Detergent & Softener does not flow in .................................................................................... 33
• Water Leak ............................................................................................................................. 34
9. DISASSEMBLY INSTRUCTIONS ................................................................................................... 36
10. EXPLODED VIEW ......................................................................................................................... 43

1. SPECIFICATION

ITEM

F1*20TD(1~9) / F1*22TD(1~9)/F1*56*D/WD-*690TDK

POWER SUPPLY

220-240V~, 50Hz

PRODUCT WEIGHT

64kg

WASHING

135W

SPIN (1400rpm)

530W

DRAIN MOTOR

30W

WASH HEATER

2000W

REVOLUTION

WASH

50rpm

SPEED

SPIN

ELECTRICITY
CONSUMPTION

OPERATION WATER PRESSURE

F10**TD

No Spin~1000 rpm

F12**TD

No Spin~1200 rpm

F14**TD

No Spin~1400 rpm

2
(30-1000kPa)
0.3-10kgf/cm

CONTROL TYPE

Electronic

WASH CAPACITY

Cotton 8kg (Max.)

DIMENSION

600mm(W)x550mm(D)x850mm(H)

DOOR SWITCH TYPE

Bi-Metal type

WATER LEVEL

9 steps (by sensor)

DELAY FINISH TIME

From 3 hours to 19 hours

SENSING OF THE LAUNDRY AMOUNT

Available

FUZZY LOGIC

Available

DISPLAY OF THE REMAINING TIME

Available

ERROR DIAGNOSIS

10 items

POWER AUTO OFF

Available

CHILD LOCK

Available

AUTO RESTART

Available

2. FEATURES & TECHNICAL EXPLANATION
2-1. FEATURES

Anti Crease function
With the alternate rotation of the drum, creasing in the laundry is
minimized.

More economical by Fuzzy Logic System
FUZZY Logic System detects the amount of load and water
temperature, and then determines the optimum water level and
washing time to minimize energy and water consumption.

Child-Lock
The Child-Lock system has been developed to prevent children
from pressing any button (except Power button) to change the
programme during operation.

Low noise speed control system
By sensing the amount of load and balance, this system
automatically distributes load evenly to minimize the spinning
noise level.

Direct Drive System
The advanced Brushless DC motor rotates the drum directly
without a belt and a pulley.

Built-in heater
Internal heater automatically heats the water to the best
temperature on selected cycles.

2-2. DETERMINE WASHING TIME BY FUZZY LOGIC
To get the best washing performance optimal time is determined by sensing of water temperature,
selected washing temperature and laundry amount.

water
temperature
washing time
selected
washing
temperature

FUZZY
LOGIC

rinse time

the best
washing
performance

spin rhythm, time
laundry
amount

SENSING

PROCESSING

DETERMINATION

EFFECT

2-3. WATER LEVEL CONTROL
This model uses a pressure sensor to determine the water level in the tub.
When the preset water level reached, water supply is stopped and the program proceeds.
Water needs to be below a preset level before spining will proceed.

2-4. THE DOOR CAN NOT BE OPENED
While program is operating.
While Door Lock light turns on.

3. PARTS IDENTIFICATION

Power Plug
If the supply cord is
damaged, it must be
replaced by the
manufacturer or its
service agents or a
similarly qualified
person in order to
avoid a hazard.

Drawer
(For datergent and
fabric softener)

Control Panel

Drum
Door
Drain Pump Filter

Drain Plug
Lower cover
Lower cover cap
Adjustable Feet

ACCESSORIES

Inlet hose(1EA)

Option : Hot / Cold(2EA)

Spanner

4. INSTALLATION
INSTALLATION
The appliance should be installed as follows.

1 Check the conditions of installation area.
1. Check level ground.

horizontal

On raised foundations or upper level homes, the vibrations can be caused by the type of flooring.
It may be necessary to move the machine to a different area in the home or have the floor
reinforced to properly support the operation of the unit.

2. Check humidity or any foreign objects under the feet.
Clean the floor, and there should not be any foreign objects under the feet.
If the unit has foreign objects underneath the feet, this will prevent the unit from being leveled properly
and will cause vibrations and slipping.
Remove any foreign objects, if any from underneath the machine and level unit properly.
See below for examples of foreign objects.

Purchased
stopper

Capet

Paper

Laminated
paper

2 Open the box and check appliance condition.

Washer
Base Packing
Packing Support

Wrench

This leveling (or spanner) wrench must
be used to remove the shipping bolts
and level the unit. This should be kept
for future use.

3 Use spanner to remove transit bolts.

X 4 EA

Without removal of transit bolts
Spin noise and shaking.

Transit bolts

4 Confirm the distance between the appliance and the wall.
If the distance is less than 2cm,
the water supply hose will
kink or fold.

More than 2cm

5 The tap connection and hose connection must be parallel.
1. Normal Tap without thread & screw type inlet hose.
1. Unscrew the fixing screw to
attach the tap.

Upper
Connector

2. Push the connector up till the
rubber packing is in tight contact
with the tap. Then tighten the 4
screws.

Rubber
packing

3. Push the water supply hose
vertically upwards so that the
rubber packing within in the hose
can adhere completely to the tap
and then tighten it by screwing it
to the right.

Rubber packing
Upper
Connector

Upper
Connector
Plate

Fixing screw

Water supply
hose

2. Normal Tap without thread & one touch type inlet hose (Single inlet models)
1. Untighten the upper connector
screw.
Upper
Connector

Rubber
packing

2. Push the upper connector up
till the rubber packing is in
tight contact with the tap. Then
tighten the 4 screws.

Middle
connector

• In case the diameter of the tap
is large remove the guide plate.
Guide plate

to the middle connector, pushing
the plate down.
Upper
Connector

Rubber packing
Fixing screw

3. Connect the water supply hose

Upper
Connector

Plate

Water supply
hose

Middle
connector

• Turn the middle connector not to
have water leaked.
• Make sure that the rubber seal is
inside the hose connector.

• To separate the water supply
hose from the middle connector
shut off the tap.
Then pull the inlet hose down,
pushing the plate down.

Connector

Hose connector
Rubber seal

• Make sure that there are no
kinks in the hose and that it is
not crushed.

6 Connect Drain Hose.
If the drain hose is not installed properly, the unit will not drain properly.
This allows water to back flow into the unit which can cause odors.
Refer to Owner Manual for proper drain hose installation.
The odor could also be coming from the home’s drain to which the drain hose is attached.

Laundry tub
about 100 cm

Hose
Retainer

Tie
strap

max. 100 cm

about 105 cm

min. 60 cm

about 145 cm
Max. 100cm
min. 60cm

Max. 100cm
min. 60cm

In this type of drain hose installation, the odor could be coming from the standpipe.
This odor can come up the drain hose and into the unit.
Pour a cup or two of bleach or vinegar down the home drain
and let it sit for 24 hours before running another cycle.
This will help eliminate odor from the home drain.
If a cycle is started too soon after doing this, it will not help the issue.

7 Connect power plug.
Connect the power plug to the wall outlet.

Avoid connecting several electric devices,
it may be the cause of a fire.

8 Check the horizontality with a level (Gage).
1 Step
If washing machine legs are loose or not screwed, then screw up with the spanner wrench.
Using the level, level the washing machine from front to back and side to side.
A level
Higher
Tighten

Adjustable feet

2 Step
Using the spanner wrench to adjust leg for horizontality and try for Diagonal test.
Diagonal test

Higher
Tighten

How to perform a diagonal test:
Place your right hand on the back, right corner and your left hand on the front,
left corner of the unit, then attempt to rock the unit from corner to corner.
Then, move your right hand to the front, right side and your left hand to the
back, left corner and attempt to rock the unit from corner to corner.
If the unit is level, it will not rock. However, if the unit is not level, it will rock.
If the unit rocks, it will be necessary to adjust the leveling feet of the unit.
Adjust the foot under the hand that is on the front of the machine.
Lower

Lock nut

Tighten

10mm
Adjustable bolt

Adjustable feet

Lower the foot until there is no gap between floor and foot.
And only use adjustment rubber when difference at the leg adjustment is more than 10mm.

Rubber Cup

4620ER3001A
(Black)
for Tile floors

4620ER3001B
(Gray)
for Wooden floors

3 Step
Perform a Rinse and Spin with some clothing in the machine.
To do this, put 2~3kg of clothing in the unit, power on the unit, press the Rinse and Spin
button, and then start. When the unit reaches the spin cycle, watch for vibrations.
If the unit is vibrating, make small adjustments to the leg until they subside. (Try 2Step again)
4 Step
Tighten the lock nut against the base of the machine to lock the position leg.
Tighen the lock nut

9 Test operation

Preparation
for washing.

Press the power button.

· Connect the power plug to the
outlet.
· Connect the inlet hose.

· In case of cotton program.

Check the water heating.

Check automatic reverse turn.

Press the START/PAUSE
button.

Check the water supply.

· Press “Temp.” button,
the present temperature will
be displayed.

· Check if the drum rotates
clockwise and counterclockwise.

· Check if water is supplied through
the detergent dispenser.

Check drain and spin.

Power off and open the door.

Water removal.

· Power off and then power on.
Turn on Spin lamps after pressing
the Start/Pause button and Start
the machine again.
· Check drain and spin.
· Power off and then power on.
· Check if the door can be opened
after Door Lock lamp turns off.

· If SVC is needed during check,
remove the remaining water by
pulling out the hose cap.

5. OPERATION
5-1. F1*22TD(1~9)

Option

Child -Lock

• Medic Rinse : Function that offers more purity in rinse operation by
maintaining the optimum temperature for elimination of
remnant detergent. It can be selected in all courses with the
exception of Quick 30. Hand Wash/Wool, Delicate course.
• Intensive : • If the laundry is heavily soiled “Intensive” option is effective.
• By selecting the Intensive option, the wash time may be
extended, depending on the program selected.
• Pre Wash : If the laundry is heavily soiled, “Pre Wash” course is effective.
Pre Wash is available in Cotton and Synthetic Program.
• Crease Care : If you want to prevent crease, select this button with spin

• Child Lock system can
be set and canceled by
pressing and holding
both Medic Rinse button
and Pre Wash button
simultaneously more
than 3 seconds.

Wash program selector
• 13 programs can be set
depending on the type of
the laundry.
• If the power button is
pressed, all lamps are on
• By turning the dial, [Cotton Cotton Quick - Synthetic Duvet - Bulky - Quick 30 Rinse+Spin - Spin - Delicate Hand Wash/Wool - Bio Care Boiling Care - Baby Care]
can be selected.
This is a bi-directional selector.

Start/Pause button

Tub Clean

• Use the button to start or pause wash
cycle.
• The power turns off automatically 4
minutes after the pause button is
pressed.

• Tub Clean course can be set by
pressing and holding Intensive and
Crease Care button simultaneously.
• Tub Clean is special cycle to clean the
inside of the washer.

F1*22TD(1~9)
LOAD TEST MODE

Page 19

- Press and Hold ‘Temp.’ & ‘Spin’ buttons and then press ‘Power’ button.

Water level frequency
- Press and Hold ‘Temp.’ & ‘Medic Rinse’ buttons simultaneously.

LED display

Time Delay & Beep ON/OFF

• Display the estimated remaining time
(Hour : Minute) to finish.
• In case of abnormal operation, error indications are
displayed.
(
)
• See troubleshooting guide.

• Press the button when reservation washing
is needed.
• When the button is pressed, [
] is
displayed, maximum delay of [
] hours
can be set.
• Each press advances time delay by the hour.
• Use [Power] button to cancel [Time Delay]
• [Time Delay] means the time required from
the present to the completion of washing.
• The Beep on/off function can be set by
pressing and holding the Time Delay button
(About 3 seconds).
The Beep on/off function can be set at any time
and it is automatically cancelled in the event of
a power cut.
The Beep on/off function also works when
power is off.

Power button
• Press the button to turn power on and off.
• Press the button to cancel the time delay.

Spin Button
• By pressing the Spin Button the spin speed
can be chosen
• F10**TD(1~9)
Rinse Hold/No spin/400/800/1000
• F12**TD(1~9)
Rinse Hold/No spin/400/800/1200
• F14**TD(1~9)
Rinse Hold/No spin/400/800/1200/1400

Water temperature selector
• Press the button to select water temperature.
• 95°C is selected for Cotton and Baby Care
only.
• By pressing the button while operating the
washer, the present temperature is displayed.

5-2. F1*20TD(1~9)

Wash program selector

LED display

• 9 program can be set depending on the type of the
laundry.
• If the power button is pressed, Cotton program is
automatically set.
• By turning the dial, [Cotton - Cotton Quick - Synthetic Delicate - Wool/Silk - Hand Wash - Quick 30 - Duvet
- Baby Care] can be selected.
This is a bi-directional selector.

• Display the estimated remaining time
(Hour : Minute) to finish.
• In case of abnormal operation, error indications are
displayed.
(
)
• See troubleshooting guide.

Power button
• Press the button to turn power
on and off.
• Press the button to cancel the
delay finish.

Start/Pause button
• Use the button to start or pause
wash cycle.
• The power turns off
automatically 4 minutes after
the pause button is pressed.

Option button

Child -Lock

• Pre Wash : Use this option for loads that need pretreatment.
It add 16 minutes pre wash and drain.
• Rinse+Spin : Use this option to rinse and then spin.
• Soaic : Use this mode to wash normal clothes or think and heavy
clothes which are excessively dirty.
• Spin Only : When you want Spin only, select this option.
• Bio : If you want to eliminate protein stains, you may select Bio
function.

• Child Lock system can be set
and canceled by pressing and
holding both Option and
Rinse buttons simultaneously
more than 3 seconds.

F1*20TD(1~9)
LOAD TEST MODE
Page 19
- Press and Hold ‘Option’ & ‘Spin’ buttons and then press ‘Power’ button.
Water level frequency
- Press and Hold ‘Intensive’ button.

Time Delay & Beep ON/OFF
•
•
•
•
•
•

Press the button when delayed washing is needed.
When the button is pressed, [
] is displayed, maximum delay of [
] hours can be set.
Each press advances time delay by the hour.
Use [Power] button to cancel [Time Delay]
[Time Delay] means the time required from the present to the completion of washing.
The Beep on/off function can be set by pressing and holding the Time Delay button (About 3 seconds).
The Beep on/off function can be set at any time and it is automatically cancelled in the event of a power cut.
The Beep on/off function also works when power is off.

Intensive
• If the laundry is heavily soiled “Intensive” option
is effective.
• By selecting the Intensive option, the wash time
may be extended, depending on the program
selected.

Tub Clean
• Tub Clean course can be set by pressing and
hold Spin and Temp. button simultaneously.
• Tub Clean is special cycle to clean the inside of
the washer.

Rinse

Spin Button

Water temperature selector

• By pressing the
Rinse button, the
Rinse type can be
selected.

• By pressing the Spin Button the
spin speed can be chosen
• F10**TD(1~9)
No Spin/400/600/800/1000
• F12**TD(1~9)
No Spin/400/800/1000/1200
• F14**TD(1~9)
No Spin/400/800/1000/1400

• Press the button to select water
temperature.
• 95°C is selected for Cotton and Baby
Care only.
• By pressing the button while operating
the washer, the present temperature is
displayed.

3
3

2
2

BL
/
WH

1
1

BL
/
WH

THERMISTOR

1
1

2
2

OR SBL

BL
/
WH

PRESSURE
SENSOR

2 6 3 1 4 5
2 6 3 1 4 5

INLET VALVE

P
R
E

M
A
I
N

2 1 2 1
2 1 2 1

WH
/
BK

1 2 3 4

GY
/
WH

YL
1 2 3 4

3
3
(S)

THERMISTOR

1
1

YL
SBL

2
2

BL
/
WH

PRESSURE
SENSOR

2
2

1
1

BL
/
WH

(S) (G)

2 3 1
2 3 1
W V U

RD YL BL

RD
2 1 3
2 1 3

5 4 3
5 4 3

Motor

2 1
2 1

BL NA

P
R
E

M
A
I
N

2 1 2 1
2 1 2 1

INLET VALVE

RED

H
O
T

2 1
2 1

GY BL WH
/
/
/
WH RD BK

YL
1 23 4
1 23 4

BL
1 2 3 4 5 6
1 2 3 4 5 6

GND

16
Hb

2 6 3 1 4 5
2 6 3 1 4 5

PTC

1 2 3 WH
1 2 3

YL
/
RD

DOOR LOCK S/W

BN
/
YL

DRAIN
PUMP

1 23 4
1 23 4

1 NA
1

GN/YL

WASHIG HEATER

1 2
1 2

GN/YL

POWER CORD

NOISE
FILTER
1 2 3
1 2 3

3 2 1
3 2 1

GN/YL

YL
1 2
1 2

6. WIRING DIAGRAM / PCB LAYOUT / PROGRAM CHART
Wiring Diagram

[Note]
RD : Red
YL : Yellow
BL : Blue
WH : White
GY : Gray
BK : Black
VL : Violet
OR : Orange
SBL : Sky Blue
NA : Natural

PCB Layout
Display

Drain Pump
&
Door
&
Inlet Valve
Drain Pump
(160~177Ω)

Common

Pressure Switch
&
Heater Thermistor

Door Switch
Measure R impossible here

Measure Hz impossible here
Just check cut-off.

Main Valve
(3.5~4.5kΩ)
Pre. Valve
(3.5~4.5kΩ)

Common

Pressure Switch

Display

Heater Thermistor
(44~53KΩ, 25°C)

Motor
&
Hall Sensor
Hb
(5~15kΩ)

PCB Power & Heater

Common
Ha
(5~15kΩ)

Heater
(24.7~28.0Ω)

V
PCB Power

U
W
V~U/U~W/W~V
R : 8 ~11Ω

Program Chart

7. TROUBLESHOOTING
7-1. BEFORE PERFORMING SERVICE
1
2
3
4
5
6

Before servicing ask the customer what the trouble is.
Check the adjustments. (Power supply :220-240V~, Removal of transit bolts etc..)
Check the troubles referring to the troubleshooting.
Decide service steps referring to disassembly instructions.
F1*22TD
Then, service and repair.
After servicing, operate the appliance to see whether it works OK or NOT.

7-2. LOAD TEST MODE

F1*20TD

1 F1*22TD : Press and Hold ‘Temp.’ & ‘Spin’ buttons and then press ‘Power’ button.
F1*20TD : Press and Hold ‘Option’ & ‘Spin’ buttons and then press ‘Power’ button.
2 The washer must be empty and the controls must be in the off state.
3 Press Power with above two buttons pressed and then buzzer will sound.
4 Press the Start/Pause button repeatedly to cycle through the test modes

Pressing number of
[Start/Pause] button

Checking Point

Display Status

None

All lamps turn on

1 time

Clockwise spin (right)

Motor rpm (About 47)

2 times

Low speed Spin

Motor rpm (About 590~650)

3 times

High speed Spin

Motor rpm (About 950~1050) : F10**TD(1~9)
Motor rpm (About 1100~1250) : F12**TD(1~9)
Motor rpm (About 1350~1400) : F14**TD(1~9)

4 times

Inlet valve for pre-wash operation

5 times

Inlet valve for main-wash operation
Hot inlet valve in case of hot water fill

Water level frequency (225~265)
Water level frequency (225~265)

6 times

Inlet valve for main-wash operation

Water level frequency (225~265)

7 times

Counterclockwise spin (left)

Motor rpm (About 47)

8 times

A Heater is in operation for 3 sec.

Water Temperature

9 times

Draining pump operation

Water level frequency

10 times

Auto off operation

7-3. HOW TO KNOW THE WATER LEVEL FREQUENCY
F1*22TD : Press and Hold ‘Temp.’ & ‘Medic Rinse’ buttons simultaneously.
F1*20TD : Press and Hold ‘Intensive’ button.
The digits means water level frequency (10-1kHz)
ex) 241 : Water level frequency = 241 X 10 -1 kHz
= 24.1kHz

7-4. ERROR DISPLAY
If you press the [Start/Pause] button when an error in displayed, any error except software ERROR will
disappear and the machine will change into pause status.
In case of
,
,
, if the error is not resolved within 15 sec. In case of other errors, if the
error is not resolved within 4 min. Power will be turned off automatically and the error only will be
blinked. But in the case of
, power will not be turned off.

ERROR

SYMPTOM

CAUSE

WATER INLET
ERROR

Water has not reached to the pre-set level within 4 min.
since inlet valve operated, or water has not reached to
the normal level within 25 min.
Page 21

UNBALANCED
ERROR

The appliance is tilted.
Laundry is gathered to one side.
Non distributable things are put into the drum.

Page 22

WATER OUTLET
ERROR

Water has not drained enough within 8 min.

Page 23

OVERFLOW
ERROR

PRESSURE SENSOR
S/W ERROR

DOOR OPEN
ERROR

THERMISTOR(HEATING)
ERROR

CURRENT
ERROR

Water is automatically being pumped out because too
amuch water is in the tub.
Page 25
The sensor pressure switch is out of order.

Page 26

The [Start/Pause] button is pressed with the door open.
The door switch is out of order.
Page 27
The thermistor is out of order.

Page 28

PWB ASSEMBLY (Main) is out of order
Replace the PWB assembly (Main)
Winding in the MOTOR is short-circuited.
Replace the MOTOR

MOTOR
LOCKED
ERROR

The Connector (3-pin, male, white) in the wire harness
is not connected to the Connector (3-pin, female, white)
of MOTOR.
Reconnect or repair the connector
The electric contact between the connectors [3-pin,
male, white in the wire harness and 6-pin, female, white
in the PWB ASSEMBLY (Main]) is bad or unstable.
Reconnect or repair the contact in the connector
The wire harness between the MOTOR and PWB
ASSEMBLY (Main) is cut (open circuited).
The hall sensor is out of order/defective.
Page 29

POWER
FAILURE

The washer experienced a power failure.

7-5. TROUBLESHOOTING WITH ERROR
Water Inlet Error (IE)
[Note] Environmental safety check list
1. No water tap leakage & freeze.
3. No water shortage.
5. No the inlet filter clogged.
Is the water tap closed?

2. No entanglement of water supply hose.
4. No water supply hose leakage.

YES
Check the Water tap and open it fully.

When there is water in the tub,
is the water level frequency
over 25.5KHz?

YES

Check the Air Chamber and the Tube (clogged)
And When you check the water level frequency again,
if it is over 25.5KHz, you replace the Pressure switch.

Is the Connector connected correctly to
the Main PCB and the Inlet Valve?
Or is the Harness alright ?

Reconnect or repair the Connector.
Or replace the Harness.

Replace the Inlet Valve.

Replace the Main PCB.

YES

Is the each resistance of Inlet Valve within
3.5 ~4.5 kΩ ?

1 Pre. Valve
2 Main Valve

YES

When the washing machine is started,
is operated the inlet valve?

Unbalanced Error (UE)
Does the load lean toward one
side, or is the load a few items?

YES

The few items of clothing will clump together
and their weight will be in one place on the drum,
throwing the weight off during spin mode.
So add some laundry to overcome UE error.
And rearrange load to allow proper spinning.

NO
Try rearranging the laundry in drum
Or the laundry is separated by size, type, and color.

Is the laundry mixed?

YES

Separate by size,
type and color

Is the washing machine installed
at an angle?

YES

Adjust the height of washing
machine to be kept horizontally.
( Page 7)

Water Outlet Error (OE)
Is the drain hose kinked ?

Check drain hose for kink and straighten the Hose.

YES

Drain Hose

Is the Pump filter clogged ?

YES

Check & Clean Pump Filter.
This kind of accumulation on the drain filter not only
prevents proper drainage, but also will promote
bacteria growth and cause odors.
This drain filter should be cleaned once a month.

* How to disassemble and clean pump filter

Open the Cover by coin or
finger(only new model)

Drain water by removing the
hose cap.

Disassemble the pump
filter by turning the filter
cap counterclockwise.
Pump Filter

Cover
Filter Cap

Assemble & close cap

Hose Cap

Filter clogged by foreign objects

filter Cap

Clean the filter

Is the Standpipe Height greater
than 1.0 m above the floor?

Observe Standpipe Height requirements
of 1.0m maximum.
- Your washer will not be able to drain out
water adequately, if the standpipe exceeds 1.0 m.
In this case, water may flow back into the washer.

YES

When there is not water in the
pump casing, is the water level
frequency over 25.5KHz ?

Check the Air Chamber and the Tube (clogged).
And When you check the water level frequency
again, if it is over 25.5KHz, you replace the
Pressure switch.

YES

Is the Connector connected correctly to
the Main PCB and the Pump Motor ?
Or is the Harness alright ?

Reconnect or repair the Connector.
Or replace the Harness.

YES

Is the resistance of the Pump Motor out
of 160 ~ 177Ω?
Or is there the Impeller bind?
Bind

YES

Replace the Pump Motor.

Is Pump motor started, when the spin
mode is started ?

Replace the Main PCB.

Over Flow Error (FE)
YES

Is the water coming in
drawer continuously?

Replace the Inlet Valve assembly.

After power off for 10 sec. and power on.
Does the water level over reference line and Is not the water level frequency 25.5Khz or 26.1Khz ?
Or does not the water level over reference line and is the water level frequency 25.5Khz or 26.1Khz?

F1*22TD

Press

F1*20TD

Press “Intensive”

“Temp.” and “Medic Rinse”

YES

Check the Air Chamber and the Tube (clogged).

Replace the Main PCB.

If FE is displayed again,
then replace the Pressure Switch.

If FE is displayed again,
then replace the Main PCB.

Pressure Sensor S/W Error (PE)
Is the Connector connected correctly to
the Main PCB and the Pressure Switch ?
Or is the Harness alright ?

Reconnect or repair the Connector.
Or replace the Harness.

YES

Is the resistance of the Pressure Switch
out of range?

YES

Replace the Pressure Switch.

YES

Check air chamber and remove the foreign material.

[Pin1 ~ Pin3]
21~23Ω)

Is the air chamber and the tube clogged?

Replace the Main PCB.

Door Open Error (dE)
Close the door totally.

Is the door closed?

YES

Is the Door assembly in line with door
switch ?
Scratch by Latch Hook

Lift up & Close the door.
If the dE is displayed, Replace the Door Bracket.

YES

Touching

Does the Spring of Latch Hook actuate?

Replace the Latch Hook.

Reconnect or repair the Connector.
Or replace the Harness.

Replace the Door switch.

YES

Is the Connector connected correctly to
the Main PCB and the Door Switch?
Or is the Harness alright ?

YES

Does the Door Switch operate as follows?

* Door Locking time : 1~8 sec.
Check the time between from
input the power to parts 1
move up, then Door locked.
* Door Releasing time : 25~100 sec.
Check the time between from
off the power to parts 1
move down, then Door released.

Thermistor (Heating) Error (tE)
Is the Connector connected correctly to
the Main PCB and the Thermistor and
the Heater? Or is the Harness alright ?

YES

Reconnect or repair the Connector.
Or replace the Harness.

YES

Replace the Thermistor.

YES

Replace the Heater.

Is the resistance of the Thermistor out
of range 44 ~ 53 KΩ at 25°C?
(Page 17)

Is the resistance of the Heater out of
range 24.7 ~ 28.0Ω ? (Page 17)

Replace the Main PCB.

[Note] Thermistor Spec
S
P
E
C

Temp

Resistance (kΩ)
MIN

STD

MAX

30 °C

36.35

39.45

42.72

40 °C
60 °C

24.20

26.05

27.97

70 °C

11.43
8.088

12.12
8.514

12.82
8.940

95 °C

3.544

3.791

4.045

105 °C

2.617

2.816

3.023

Motor Locked Error (LE)
[Pre Check]
• Gentle wash cycles, such as Perm Press, Delicates, Hand Wash, and Wool/Silk should only be used for smaller loads.
Because these cycles are more gentle in tumbling and spinning, putting too much in the drum can register an issue
with the motor. Remove items, reset unit and test with a Rinse/Spin cycle.
• Don’t replace the PCB, when the hall sensor is replaced.
Replace the PCB, when the LE is displayed after replacing the hall sensor.
Press the Power button & Start / Pause button.
Does the Drum stop when the start/pause button is pressed to start the cycle ?
Or Sometimes does the Drum rotate weakly (under 15rpm)?

YES
Is the Connector connected correctly to
the Main PCB and the Motor?
Or is the Harness alright ?

Reconnect or repair the Connector.
Or replace the Harness.

YES

Disassemble the Rotor.
Are the Magnet of rotor cracked or broken?

YES

Magnet

Replace the Rotor.

NO
Are the resistance of the Hall Sensor 5~15kΩ?
Hb

• Ha ~ Common
: 5 ~ 15 kΩ
• Hb ~ Common
: 5 ~ 15 kΩ

Replace the Hall Sensor.
Disassemble
hall sensor carefully.
(Next page)

Replace the Stator.

Ha Common

YES
Are the resistance same
between Stator points?
V~U / U~W / W~V : 8~11Ω

V U W

YES

Replace the Main PCB.

1 Disassemble the Hall Sensor
1) Disassemble the hook of Hall Sensor by (-) driver.

2) Pull up Hall Sensor slowly as shown in picture.

Caution
If you disassemble by force,not following the directions,
the hooks of stator(red circled) might broke up.
Hence need change of stator assembly.
So disassemble cautiously.

2 Assemble the Hall Sensor
2) Push down the Hall sensor,
and assemble to the hook for sure.

1) Adjust the hole of Hall Sensor to
the hooks of stator as picture.(red circled)

[Note]
Hall Sensor Part No.
• 24” / 25” : 6501KW2001A

• 27” : 6501KW2002A

8. TROUBLESHOOTING WITHOUT ERROR CODES
No Power
Is the Power Plug connected
firmly to the power outlet?
And is the supply voltage
220~240V AC?

Reconnect Power Plug firmly.
Check the fuse or
reset the circuit breaker.

YES

Is Multi-plug socket used ?

YES

Don’t use Multi-plug socket.
Use Single Plug socket for
washing machine.

Is the Connector connected correctly to
the Main PCB and the Noise Filter?
Or is the Harness alright ?

Noise Filter

Reconnect or repair the Connector.
Or replace the Harness.

Check and replace Main PCB.

YES

Check connectors otherwise.
Replace Display PCB.

PCB

YES

Is Red LED ON while power supplied ?

YES

Is the connectors connected
Correctly to the Display
PCB?

Vibration & Noise In Spin
Have all the Transit Bolts and the Base Packing
been removed?

Washer
Base Packing
Packing Support

YES

Refer to INSTALLATION. (Page 7)

Remove the Transit Bolts and
the Base Packing.

Detergent & Softener does not flow in
Is water supplied?

Refer to [Water Inlet Error (IE)]
(page 21)

Put it in the Correct Position.

YES

Is detergent & softener put in
the correct compartment of the drawer?

Main Wash
(Powder)

Only
softener

Pre Wash
(Powder)

Reference (Amount of Detergent & Softener)
Detergent

Softener

YES
NO!!

Is the Detergent caked or hardened?

OK!!

YES

Check point

Clean the drawer and dispenser.

Water Leak
1. Water Leak from Dispenser
Is the Dispenser Tray Damaged or warped?

YES

Replace the Dispenser Tray.

Put it in the Correct Position.

Is detergent & softener put in
the correct compartment of the drawer?

Reference (Amount of Detergent & Softener)
Main Wash
(Powder)

Only
softener

Pre Wash
(Powder)

Detergent

Softener

NO!!

YES
OK!!

Is the Detergent caked or hardened?

YES

Check point

Clean the drawer and dispenser.

2. Water Leak from Dispenser
Are the gasket (seal)
and door cleaned regularly?

Clean the periphery of Gasket and Door regularly.

YES

Is the door or gasket damaged?

YES

Replace the damaged parts.

YES

Replace the Inlet Hoses.

3. Unknown – Water on Floor
Are the inlet hoses loose or cracked/split?

Check!!

Is the washer horizontal ?

Adjust the height of washing machine to be kept
horizontally. (Page 7)

Turn the filter cap clockwise to close.

YES

Are the drain filter and manual
drain hose open?

9. DISASSEMBLY INSTRUCTIONS
Be sure to unplug the machine out of the outlet before disassembling and repairing the parts.

CONTROL PANEL
PLATE ASSEMBLY (TOP)

1 Unscrew 2 screws on the back of the top plate.
2 Pull the top plate backward and upward as
shown.

1 Disconnect the PWB assembly connector from
Hook

Main lead wire assembly.

2 Pull out the drawer and unscrew 2 screws.
3 Push upper hooks down on the top and pull
the control panel.

PANEL ASSEMBLY
(CONTROL)

1 Disconnect the PWB assembly (Main & Display)
from control panel by unscrewing 7 screws.

DISPENSER ASSEMBLY

1 Disassemble the top plate assembly.
2 Pull out the drawer to arrow direction.
3 Unscrew 2 screws.
PUSH

DRAWER

1 The hose clamps and the hose are
disassembled.

Option

DISPENSER ASSEMBLY

1 The ventilation bellows and the water inlet
bellows are disassembled on the tub.

INLET VALVE
1 Disconnect the wiring receptacle.
3

2 Unscrew 2 screws from the back.
2

When reconnecting the connector

VALVE #1 (MAIN)

White / Black - Black

VALVE #2 (PRE)

Gray / White - Black

VALVE #3 (HOT)

Blue / Red - Black

• Rating : 220/240V 50/60Hz
• Resistant : 3.5~4.5kΩ

LOWER COVER
Open the lower cover cap by using coin and
pull out the lower cover to the arrow direction
after a screw is unscrewed.

DOOR
1 Open the door completely.
2 Remove the two screws from the hinge.
When removing the door assembly, it is
necessary to hold the bracket that is inner
of the cabinet cover.

GASKET ASSEMBLY

1 Take apart the cabinet gasket clamp.
2 Unscrew 2 screws from the cabinet cover.
3 Open the lower cover cap and unscrew 1
screw inside.

4 Take apart the lower cover.

1 Disassemble the control panel. (page 24)
2 Unscrew all the screws on the upper and lower
sides of the cabinet cover.

1 Take apart the tub gasket clamp.
2 Make sure that the drain hole of the gasket is
put beneath when reassembling the gasket.

efer to the arrow mark on the tub cover.

ROTOR ASSEMBLY, STATOR ASSEMBLY, FRICTION DAMPER ASSEMBLY

1 Remove the BACK COVER.
2 Unscrew the bolt to pull out the ROTOR

Rotor

assembly.
Bolt

(ROTOR ASSEMBLY)

1 Disconnect the wiring connector.
2 Unscrew 6 bolts from the STATOR.
3 Remove the STATOR.
Note : Hook of connector (1) is on the backside

(1)

1 Pull out the hinge, pressing its snap.

(STATOR ASSEMBLY)

2 Do not use the pulled-out hinge again. It may
be taken off during operation.

Damper

Hinge,
Damper

(DAMPER)

Motor Stator

Hall Sensor

Hb
• V ~ U (8~11Ω)
• U ~ W (8~11Ω)
• W ~ V (8~11Ω)

• Common ~ Ha (5~15kΩ)
• Common ~ Hb (5~15kΩ)

Ha
Common

U VW

PUMP
Pump Outlet Hose

1 Remove pump outlet hose.
2 Remove tub pump bellows.
3 Remove cap (Remaining Hose.)
4 Disconnect the wiring.
5 Unscrew 2 screws.
6 Remove the pump.

Tub Pump
Bellows

• Rating : 220~240V 50HZ 30W
• Resistant : 160~177Ω

HEATER
1 Loosen the M6 heater nut to pull out the
heater.

CAUTION

When mounting the heater, be sure to insert
the heater into the heater clip on the bottom
of the tub.

M6 heater nut

• Rating : 220~240V 2000W
• Resistant : 24.7~28.0Ω

SWITCH ASSEMBLY, DOOR LOCK
1 Take apart the cabinet cover clamp and
release the gasket.

2 Unscrew 2 screws holding the door lock.
3 Disconnect the door lock from the wiring
connector.

• Just check cut-off.
• Check the operating time.
* Door Locking time : 1~8 sec.
Check the time between from
input the power to parts 1
move up, then Door locked.

* Door Releasing time : 25~100 sec.
Check the time between from off
the power to parts 1
move down, then Door released.

WHEN FOREIGN MATERIAL IS STUCK BETWEEN DRUM AND TUB
1 Remove the heater.
2 Remove the foreign material (wire, coin and
others) by inserting a long bar through the
hole.

10. EXPLODED VIEW
10-1.THE EXPLODED VIEW OF CABINET ASSEMBLY
A154

A153

A110

A140
A152

A151

A150

A101

A141
A131
A102

A100

A104
A430
A103
A130
A485

A134

A440

A410

A133
A200
A201
A300

A303

A276

A310

COLD (BLUE)

A220

10-2 THE EXPLODED VIEW OF CONTROL PANEL & DISPENSER ASSEMBLY
F321

F462

F300
F160
F464
F310

F432

F225

F430

F220
F441

F120

A450
F215
F110

F210

10-3 THE EXPLODED VIEW OF DRUM & TUB ASSEMBLY
K351

K350

K360

K143
K123

F140
K411
K121

K410

K122

K125

F320
K320

K111
F466

K110
K141
K105

K140

K170
K115

K610

K130

K135

K510

K611

K530

K131

F468
K340
F467

K550
K520
K346

K344 K342

F461 K540

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Lg Washing Machine F1256Qd Users Manual 006A_080910

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