LG F4J8GNP2W User manual

WASHING MACHINE
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE PROBLEMS
CORRECTLY BEFORE OFFERING SERVICE.
BEFORE SERVICING THE WASHING MACHINE, UNPLUG THE POWER
CORD TO AVOID THE RISK OF AN ELECTRIC SHOCK.
WHEN SERVICING INTERNAL PARTS, USE ONLY SERVICE PARTS
SUPPLIED FROM LG.
AFTER SERVICING THE ELECTRIC WIRE, INSURE THAT INSULATION
TAPE IS APPLIED TO PREVENT AN ELECTRICAL SHORT.
MODEL : F4J8GNP2W/F4J8FNP2W/F4J8FNP2S
WD1408NCW/WD1409NCW/WD1409NCE
website :http:/ / biz.lgservice.com
e- mail : http:/ / LGEservice.com/ techsup.html

CONTENTS
1. SPECIFICATIONS ............................................................................................................................. 3
2. FEATURES & TECHNICAL EXPLANATION ..................................................................................... 4
3. PARTS IDENTIFICATION ................................................................................................................. 6
4. INSTALLATION .................................................................................................................................. 7
5. OPERATION ................................................................................................................................... 12
6. WIRING DIAGRAM / PCB LAYOUT ................................................................................................ 17
7. TROUBLESHOOTING......................................................................................................................19
7-1.BEFORE PERFORMING SERVICE ......................................................................................... 19
7-2.LOAD TEST MODE .................................................................................................................. 19
7-3.HOW TO CHECK THE WATER LEVEL FREQUENCY ............................................................ 20
7-4.ERROR DISPLAY ..................................................................................................................... 21
7-5.TROUBLESHOOTING WITH ERROR ..................................................................................... 23
IE (Water Inlet Error).............................................................................................................. 24
UE (Unbalanced Error)........................................................................................................... 25
OE (Water Outlet Error).......................................................................................................... 26
FE (Over Flow Error).............................................................................................................. 28
PE (Pressure Sensor S/W Error) ............................................................................................ 29
dE2 (Door open Error).............................................................................................................. 31
dE1 (Door switch Error).............................................................................................................. 31
tE (Thermistor (Heating) Error)............................................................................................. 33
LE (Motor Lock Error)............................................................................................................ 36
8. TROUBLESHOOTING WITHOUT ERROR CODES ....................................................................... 38
Power Failure or no power.................................................................................................... 38
Vibration & Noise during spin................................................................................................. 39
Detergent & Softener does not flow in ................................................................................. 40
Water Leak ............................................................................................................................. 41
Smart function ..................................................................................................................... 43
9. PART INSPECTION ........................................................................................................................ 45
9-1.FILTER ASSEMBLY (LINE FI LTER) ......................................................................................... 45
9-2.DOOR LOCK SWITCH ASSEMBLY ......................................................................................... 46
9-3.STATOR ASSEMBLY ............................................................................................................... 48
9-4.
PUMP MOTOR ASSEMBLY ....................................................................................................... 49
9-5.INLET VALVE ASSEMBLY ....................................................................................................... 50
10. DISASSEMBLY INSTRUCTIONS .................................................................................................. 51
11. EXPLODED VIEW AND PART LIST .............................................................................................. 59

1. SPECIFICATION
To reduce the risk of personal injury, adhere to all industry recommended safety procedures including
the use of long sleeved gloves and safety glasses.
Failure to follow all of the safety warnings in this manual could result in property damage, personal
injury or death.
WARNING
ITEM
POWER SUPPLY
PRODUCT WEIGHT
OPERATION WATER PRESSURE
CONTROL TYPE
WASH CAPACITY
DIMENSION
WASH PROGRAM
RINSE
DOOR SWITCH TYPE
WATER LEVEL
RESERVATION
SENSING LAUNDRY AMOUNT
FUZZY LOGIC
DISPLAY REMAINING TIME
ERROR DIAGNOSIS
POWER AUTO OFF
CHILD LOCK
AUTO RESTART
TIME SAVE
ELECTRICITY
CONSUMPTION
WASHING
SPIN
DRAIN MOTOR
WASH HEATER
REVOLUTION
SPEED
WASH
SPIN
No / 400 / 800 / 1000 / 1200 / 1400
46 rpm
100 ~ 800 kPa ( 1.0 kgf / cm 2~ 8.0 kgf / cm 2)
Electronic
Refer to the Rating Label
600 mm (W) x 610 mm (D) x 850 mm (H)
Cotton, Cotton Eco, Mix, Easy Care, Duvet, Hygiene, Baby Care,
Sports Wear, Wool Plus, Delicate, Heavy Stain, Silent Wash,
Quick 14, Download Cycle
Normal, Rinse+
PTC+S olenoid
by Pressure Sensor S/W
From 3 hours to 19 hours
Adapted
Adapted
Adapted
11 items
Adapted
Adapted
Adapted
Adapted
SMART Wi-Fi Function / Smart Diagnosis function (3.0)
190 W
380 W
30 W
2100 W
220 V - 240 V ~, 50 /60Hz
67 kg
F4J8GNP2W / F4J8FNP2W / F4J8FNP2S
WD1408NCW / WD1409NCW/ WD1409NCE

2. FEATURES & TECHNICAL EXPLANATION
2-1. Product Features
Inverter Direct Drive system
The advanced Brushless DC motor directly drives the drum without
belt and pulley.
Low noise speed control system
By sensing the amount of load and balance, it evenly distributes load
to minimize the spinning noise level.
Child Lock
The Child Lock prevents children from pressing any button to change
the settings during operation.
More economical with Intelligent Wash system
Intelligent Wash System detects the size of load and water temperature,
and then determines the optimum water level and washing time to
minimize energy and water consumption.
Turbo Clean
Wash the laundries in 1 hour with energy and water saving.
6 Motion
Washer is able to perform various drum actions or a combination of
different actions depending on the wash program selected.
Combined with a controlled spin speed and the ability of the drum to
rotate both left and right, the wash performance of the machine is greatly
improved, giving you perfect results every time.
Auto Restart
Auto Restart allows the program to restart all by itself in case of power
failure. It does from the stage where it stopped.
SmartDiagnosis™
Should you experience any technical difficulty with your washing
machine, it has the capability of transmitting data by phone to the
Customer Information Center. The call center agent records the data
transmitted from your machine and uses it to analyze the issue,
providing a fast and effective diagnosis.

2-2. DETERMINE WASHING TIME BY FUZZY LOGIC
To get the best washing performance optimal time is determined by sensing the water
temperature, selected washing temperature and laundry amount.
2-3. WATER LEVEL CONTROL
This model adopts a pressure sensor which can sense the water level in the tub.
Water supply is stopped when the water level reach the preset level, then washing program proceeds.
Spinning does not proceed until the water in the tub reduces to a certain level.
water
temperature
washing time
rinse time
the best
washing
performance
spin rhythm, time
laundry
amount
FUZZY
LOGIC
selected
washing
temperature
SENSING EFFECT PROCESSING DETERMINATION
2-4. THE DOOR CAN NOT BE OPENED
While program is operating.
While Door Lock light is on.

3. PARTS IDENTIFICATION
Transit bolts (x 4)
Power plug
Drawer
Control panel
Drum
Door
Drain hose
Drain tube
Drain pump filter
Cover cap (Location may
vary depending on products)
Adjustable feet (x 4)
1
2
3
4
5
6
7
8
9
10
11
Accessories
Cold supply hose (1EA)
(Option: Hot (1EA)
Spanner Caps for covering
transit bolt holes
(Optional)
Anti–slip sheets (2 EA)
(Optional)
Elbow bracket for
securing drain hose
(Optional)
Tie strap (Optional)

4. INSTALLATION
INSTALLATION
The appliance should be installed as follows.
Check the conditions of installation area.
1. Check level ground.
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 for humidity or any foreign objects under the feet.
Clean the floor, there should be no 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.
1
Open the box and check appliance condition.
2
horizontal
Carpet Paper Laminated
paper
Purchased
stopper
Base Packing
Washer
Spanner
This leveling (or spanner) wrench must
be used to remove the shipping bolts
and level the unit. This should be kept
for future use.

1. 2. 3.
1. 2. 3.

Connect Drain Hose.
6
Connect power plug.
7
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.
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.
Connect the power plug to the wall outlet. Avoid connecting several electric devices,
it may be the cause of a fire.
about 100 cm
about 145 cm
about 105 cm
Laundry tub
Max. 100cm
min. 60cm
Max. 100cm
min. 60cm
Retainer
Tie
strap
Hose
min. 60 cm
max. 100 cm

Rubber Cup
Check the horizontality with a level (Gage).
8
Step 1
If washing machine legs are loose or not Screwed in, then tighten with the spanner wrench.
Using the level, level the washing machine from front to back and side to side.
Step 2
Use the spanner wrench to adjust Legs until level and try the Diagonal test.
Step 3
Perform a Rinse and Spin with some clothing in the machine.
To do this, put 2~3kg of clothing in the unit, turn on the unit, Select the Rinse+Spin
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. (Repeat step 2)
Step 4
Tighten the lock nut against the base of the machine to lock the position leg.
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.
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.
How to perform a diagonal test:
A level
Higher
Tighten
Adjustable feet
Diagonal test
Tighten
Adjustable feet
Higher
Tighten
Adjustable feet
Lower
4620ER4002B
(Gray)
for Wooden floors
Rubber Cup
4620ER4002A
(Black)
for Tile floors
Lock nut
10mm
Adjustable bolt
Tighen the lock nut
Floor
No Gap
Floor
No Gap
Floor
Gap

Test operation
9
1Preparation
for
washing.
· Connect the power plug to the
outlet.
· Connect the inlet hose.
2Press the power button. 3Press the START/PAUSE
button.
6Check the water heating.
· Touch the Temp and Medic
Rinse button simultaneously and
the present temperature will be
displayed. Page 20
· Check if the drum rotates
clockwise and counterclockwise.
5
Check automatic reverse turn.
4Check the water supply.
· Check if water is supplied through
the detergent dispenser.
7Check the drain and spin
functions.
· Turn power off and then power on.
· Select the spin rpm
· Press the START PAUSE button.
· Check the spin and drain
functions. · Turn power off and then power on.
· Listen for a click to determine if the
door is unlocking.
8Turn power off and open
the door.
9Water removal.
· If SVC is needed during check,
remove the remaining water by
pulling out the hose cap.
· In case of Coloreds program.

5. OPERATION
How to use washer
Control Panel
Power Button
•Press the Power button to turn the
washing machine on, or off if washing
hasn't commenced.
Start/Pause Button
•The Start/Pause button is used to start
the wash cycle or pause the wash cycle.
•If a temporary stop of the wash cycle is
needed, press the Start/Pause button.
Display
•The display shows the settings, estimated
time remaining, options, and status
messages. When the washer is turned on,
the default settings in the display will
illuminate.
•The display shows estimated time
remaining. While the size of the load is
being calculated automatically, the display
will blink before displaying the estimated
cycle time.
1
2
3
Programme Knob
•Programmes are available according to
the laundry type.
•The lamp will light up to indicate the
selected programme.
Options
•This allows you to select an additional
programme and will light when selected.
•Use these buttons to select the desired
programme options for the selected cycle.
Not all options are available with each
programme cycle.
•In order to use the Remote Start function,
refer to SMART FUNCTIONS.
4
5
SmartDiagnosis™ function is
available only for the products with
a SmartDiagnosis™ mark.

How to use washer
Programme Table_Washing Programme
Programme Description Fabric Type Proper Temp. Maximum
Load
Cotton
Provides better
performance by
combining various
drum motions.
Coloured fast garments
(shirts, nightdresses,
pajamas, etc.) and
normally soiled cotton
load (underwear).
40 °C
(Cold to 95 °C)
Rating
Cotton Eco
Provides optimised
washing performance
for large amount of
laundry with less
energy consumption.
60 °C
(Cold to 60 °C)
Easy Care
Suitable for casual
shirts that do not need
ironing after washing.
Polyamide, acrylic,
polyester.
40 °C
(Cold to 60 °C)
4,0 kgMix
Enables various fabrics
to be washed
simultaneously.
Various kind of fabrics
except special
garments (silk/delicate,
sports wear, dark
clothes, wool, duvet/
curtains).
40 °C
(Cold to 40 °C)
Hygiene Washes laundry in a
hot cycle
cotton, underwear,
pillow covers, bed
sheets, baby wear
60 °C
Duvet
For large items such as
bed covers, pillows,
sofa covers, etc.
Cotton bedding except
special garments
(delicates, wool, silk,
etc.) with filling: duvets,
pillows, blankets, sofa
covers with light filling
Cold
(Cold to 40 °C) 1 single size
Sports Wear
Suitable for sports
wear such as jogging
clothes and running
wear.
Coolmax, gore-tex,
fleece and sympatex
40 °C
(Cold to 40 °C) 3,0 kg
Baby Care
Removes solid and
protein stains, provides
better rinse
performance.
Lightly soiled baby
wear. 60 °C 5,0 kg
Silent Wash
Provides less noise
and vibration and
saves money by using
overnight electricity.
Coloured fast garments
(shirts, nightdresses,
pajamas, etc.) and
lightly soiled white
cotton (underwear).
40 °C
(Cold to 60 °C) 5,0 kg
Delicate
For delicate clothes
such as underwear,
blouses, etc.
Delicate, easily
damaged laundry.
20 °C
(Cold to 40 °C) 3,0 kg
Quick 14
This cycle provides fast
washing time for small
loads and lightly soiled
clothes.
Coloured laundry which
is lightly soiled fast.
CAUTION : Use less
than 20g of detergent
(for 2.0kg load)
otherwise detergent
may remain on the
clothes.
20 °C
(20 °C to 40 °C) 2,0 kg
Wool Plus
For hand and machine
washable delicate
clothes such as
washable wool,
lingerie, dresses etc.
(Use detergent for
machine washable
woolens).
Wool, hand washable
clothes, delicate, easily
damaged laundry.
20 °C
(Cold to 30 °C) 1.5 kg
Heavy Stain
Wash off several kinds
of stain such as wine,
juice, dirt, etc. (Water
temperature is
increased step by step
for washing various
stains).
Cotton blended fabrics,
no delicate clothes.
60 °C
(30 °C to 60 °C) 3,0 kg
Download
Cycle
For downloadable programmes. If you did not download any programmes, the
default is Rinse+Spin.

How to use washer
Option Programme
Delay End ( )
You can set a time delay so that the washing
machine will start automatically and finish after
a specified time interval.
1Press the Power button.
2Select a washing programme.
3Press the Delay End button to set time
required.
4Press the Start/Pause button.
NOTE
•The delay time is the time to the end of the
programme, not the start. The actual running
time may vary due to water temperature, wash
load and other factors.
•To cancel the function, the power button
should be pressed.
•Avoid using liquid detergent for this option.
Pre Wash ( )
If the laundry is heavily soiled, the Pre Wash
programme is recommended.
1Press the Power button.
2Select a washing programme.
3Press the Pre Wash button for three
seconds.
4Press the Start/Pause button.
Intensive ( )
If the laundry is normal and heavily soiled,
Intensive option is effective.
1Press the Power button.
2Select a washing programme.
3Press the Intensive button for three
seconds.
4Press the Start/Pause button.
Wi-Fi ( )
When Wi-Fi is connected, the Wi-Fi icon on the
control panel is lit.
Turbo Clean ( )
Wash cycle in under 1 hour with energy and
water saving. (based on half of laundry)
1Press the Power button.
2Select a washing programme.
3Press the Turbo Clean button.
4Press the Start/Pause button.

How to use washer
Temp.
The Temp. button selects the wash and rinse
temperature combination for the selected
programme. Press this button until the desired
setting is lit. All rinses use cold tap water.
•Select the water temperature suitable for the
type of load you are washing. Follow the
garment fabric care labels for best results. Not
all temperatures can be selected on all cycles.
Spin
•Spin speed level can be selected by pressing
the Spin button repeatedly. Higher spin
speeds may not be available on some cycles.
•Spin Only
1Press the Power button.
2Press the Spin button to select RPM.
3Press the Start/Pause button.
NOTE
•When you select No, it will still rotate slowly
for a short time to drain quickly.
Rinse
Rinse+ ( )
Adds an additional rinse.
Add Item ( )
Laundry can be added or removed after the
washing programme is started.
1Press the Add Item button when the LED is
turned on.
2Add or remove laundry.
3Close the door and Press the Start/Pause
button.
NOTE
•For safety reasons, the door remains locked
when the water level or temperature is high. It
is not possible to add laundry during this time.
•If the water temperature in the drum is high,
wait until it cools down.
CAUTION
•When adding laundry, make sure to
completely push it into the drum. If laundry
gets stuck in the door latch hole, the rubber
packing may be damaged, causing water
leakage and malfunction.
•Forcing the door open may cause part
damage, destruction, or safety problems.
•when opening the door during a wash, caution
should be taken to avoid scalding or water
overflowing onto the floor.

How to use washer
Child Lock
Use this option to disable the controls. This
feature can prevent children from changing
cycles or operating the appliance
Locking the Control Panel
1Press and hold the Child Lock button for
three seconds.
2A beeper will sound, and will appear on
the display.
When the Child Lock is set, all buttons are
locked except the Power button.
NOTE
•Turning off the power will not reset the child
lock function. You must deactivate child lock
before you can access any other functions.
Unlocking the Control Panel
Press and hold the Child Lock button for three
seconds.
•A beeper will sound and the remaining time
for the current programme will reappear on
the display.
Beep On / Off
1Press the Power button.
2Press the Start/Pause button.
3Press and hold the Temp. and Spin button
simultaneously for 3 seconds to set the
Beep on/off function.
NOTE
•Once the Beep on/off function is set, the
setting is memorized even after the power is
turned off.
•If you want to turn the Beeper back on, simply
repeat this process.

6. WIRING DIAGRAM / PCB LAYOUT
Wiring Diagram
1 1
WH
BL
2 2
3 3
Turbo
Wash
HOT
BL
/
RD
BL
RD
RD
BL

PCB Layout (Main)
Heater
PCB POWER
Motor Stator Control
W
V
U
V ~ U / U ~ W
/ W ~ V
→R : 8 ~ 11Ω
Display
Pressure S/W
Wash Therm
Pressure Switch/
Wash Thermistor
Inlet Valve
Door Switch/
Drain Motor Control
Door S/W
Drain M

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.
Then, service and repair.
After servicing, operate the appliance to see whether it works OK or NOT.
7. TROUBLESHOOTING
7-1. CHECK BEFORE SERVICE
7-2. LOAD TEST MODE
1Turn on, and touch ‘Intensive’ and ‘Delay End’
at the same time in 1 second.
2The washer must be empty and the controls must be in the off state.
3Press Power with above two buttons pressed and then buzzer will sound.
4Press the Start/Pause button repeatedly to cycle through the test modes
1
2
3
4
5
6
Display StatusNumbers Check Point Remark
0
1
2
3
4
5
6
7
8
9
10
11
Turns on all light and locks the door.
Tumble clockwise
Low speed spin
High speed spin
Inlet valve for prewash turns on.
Inlet valve for main wash turns on.
Inlet valve for hot water turns on.
Tumble counterclockwise
Heater turns on for 3 sec.
Drain pump turns on.
Off
PGM Version Information
rpm(42~50)
rpm (60)
rpm (130~140)
Water level frequency
Water level frequency
Water level frequency
Inlet valve for atomizing turn on.
Water level frequency
rpm
Water temperature
Water level frequency
-
For Hot&Cold Model

7-3. HOW TO CHECK THE WATER LEVEL FREQUENCY
Touch the Spin and Rinse+ button simultaneously.
Keeping touch, the digits indicate the water level frequency.