LG WV6-1409W User manual

1
WASHING MACHINE
SERVICE MANUAL
CAUTION
CORRECTLY BEFORE OFFERING SERVICE.
BEFORE SERVICING THE WASHING MACHINE, UNPLUG THE POWER
CORD TO AVOID THE RISK OF AN ELECTRIC SHOCK.
MODEL :
WV6-1409W
READ THIS MANUAL CAREFULLY TO DIAGNOSE PROBLEMS
WHEN SERVICING IN TERNAL PARTS, USE ONLY SERVICE PARTS
SUPPLIED FROM LG .
AFTER SERVICING THE ELECTRIC WIRE, INSURE THAT INSULATION
TAPE IS APPLIED TO PREVENT AN ELECTRICAL SHORT.

2
CONTENTS
1. SPECIFICATIONS ............................................................................................................................. 3
2. FEATURES & TECHNICAL EXPLANATION ..................................................................................... 4
3. PARTS IDENTIFICATION ................................................................................................................. 6
4. INSTALLATION .................................................................................................................................. 8
5. OPERATION ................................................................................................................................... 13
6. WIRING DIAGRAM / PCBLAYOUT ................................................................................................18
7. TROUBLESHOOTING......................................................................................................................21
7-1.BEFORE PERFORMING SERVICE ......................................................................................... 21
7-2.LOAD TEST MODE .................................................................................................................. 21
7-3.HOW TO CHECKTHE WATER LEVEL FREQUENCY ............................................................ 22
7-4.ERRORDISPLAY .....................................................................................................................23
7-5.TROUBLESHOOTINGWITH ERROR .....................................................................................26
• IE (Water Inlet Error) .............................................................................................................. 27
• UE (Unbalanced Error) ........................................................................................................... 28
• OE (Water Outlet Error) ..........................................................................................................29
• FE (Over Flow Error) .............................................................................................................. 31
• PE (Pressure Sensor S/W Error) ............................................................................................32
• dE2 (Door open Error).............................................................................................................. 34
• dE1 (Door switch Error).............................................................................................................. 34
• tE (Thermistor (Heating) Error) ............................................................................................... 36
• LE (Motor Lock Error) ............................................................................................................. 39
8. TROUBLESHOOTING WITHOUT ERROR CODES ...................................................................... 47
• Power Failure or no power .................................................................................................... 47
• Vibration & Noise during spin ................................................................................................. 48
• Detergent & Softener does not flow in .................................................................................... 49
• Water Leak .............................................................................................................................52
• Before using the Tag On function ..........................................................................................53
9. PART INSPECTION ........................................................................................................................ 59
9-1.FILTER ASSEMBLY (LINE FILTER) .........................................................................................59
9-2.DOOR LOCK SWITCH ASSEMBLY .........................................................................................60
9-3.STATOR ASSEMBLY ............................................................................................................... 62
10. DISASSEMBLY INSTRUCTIONS .................................................................................................. 64
11. EXPLODED VIEW AND PART LIST ..............................................................................................74

3
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
F4V5*BP0WE : No Spin / 400 / 800 / 1000 / 1200 / 1400
46 rpm
0.1 ~ 0.8 MPa (1.0 kgf / cm
2
~ 0.8 kgf / cm
2
)
Electronic
Refer to the Rating Label
600mm x 565mm x 850mm
Cotton, Cotton Eco , TurboClean 59，Mixed Fabric, Easy Care, Allergy Care,
Baby Care, Delicates, Hand/Wool， Sportswear, Quick 14, Duvet,
Tub Clan, Downlaod Cycle
Rinse
+
PTC+Solenoid
by Pressure Sensor S/W
From 3 hours to 19 hours
Adapted
Adapted
Adapted
13 items
Adapted
Adapted
Adapted
Adapted
SMART Wi-fi (Smart ThinQ 3.0)
155 W
490 W
20 W
220 V - 240 V ~,50Hz/60Hz
Refer to 1 page
70kg
1900-2250W

4
4
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.
Smart ThinQ (Wi-Fi feature)
This feature lets you use various functions of the product, e.g., remote
control, smart alert, mode download, and smart self-diagnosis via the
smartphone app.
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.

5
5
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 DET ERMINATION
2-4. THE DOOR CAN NOT BE OPENED
While program is operating.
While Door Lock light is on.

6
6
3. PARTS IDENTIFCATION
6
Front View
1 Control Panel
Detergent dispenser drawer
Drum
Door
Cover cap
Drain pump filter
Drain plug
Adjustable feet
Rear View
Power plug
Transit bolts
Drain hose

7
3.PARTS IDENTIFCATION
Accessories
* This feature may vary depending on the model purchased.
Cold water inlet hose*
Spanner
Caps for covering transit bolt holes*
Anti-slip sheets*
Elbow bracket for securing drain hose*
Tie strap*
Specifications
Model
Power Supply
Capacity
220-240 V~, 50 Hz
70kg
Dimension
(Width x Depth x Height) 600 mm X 565mm X 850 mm
Product
Permissible Water Pressure
Weight
0.1-0.8 MPa (1.0-8.0 kqf/ cm²)
•No further backflow protection required for connection to the water inlet.
F4V5VBP0WK
9kg

8
8
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.
8

9
9
1. 2. 3.
1. 2. 3.
9

10
10
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
10

11
11
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
11

12
12
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.
12
5. OPERRATION
How to use washer
Power
Press the Power button to turn power on
and off.
To cancel the Time Delay function, the
power button should pressed.
Program Dial
Programs are available according to the
laundry type.
Lamp will light up to indicate selected
program.
LED display
The display shows the settings, estimated
time remaining, options, and status
messages for your washer.
The display will remain on through the
cycle.
Start/Pause
This Start/Pausebutton is used to start
wash cycle or pause the wash cycle.
If temporary stop of wash cycle is
needed, touch the Start/Pause button.
When in Pause, the power is turned off
automatically after 4 minutes.
Options
This allows you to select an additional
cycle and will light when selected.
Use thise buttons to select the desired
cycle options for the selected cycle.
Control panel
Start/Pause
Button
Power Button
Program dial
Options
LED display
SmartDiagnosi s™ function is
available only for the products with
a SmartDiagnosis™mark.

13
5. OPERRATION
How to use washer
Power
Press the Power button to turn power on
and off.
To cancel the Time Delay function, the
power button should pressed.
Program Dial
Programs are available according to the
laundry type.
Lamp will light up to indicate selected
program.
LED display
The display shows the settings, estimated
time remaining, options, and status
messages for your washer.
The display will remain on through the
cycle.
Start/Pause
This Start/Pause button is used to start
wash cycle or pause the wash cycle.
If temporary stop of wash cycle is
needed, touch the Start/Pause button.
When in Pause, the power is turned off
automatically after 4 minutes.
Options
This allows you to select an additional
cycle and will light when selected.
Use thise buttons to select the desired
cycle options for the selected cycle.
Control panel
Start/Pause
Button
Power Button
Program dial Options
LED display
SmartDiagnosis™ function is
available only for the products with
a SmartDiagnosis™ m ark.

14
14
How to use washer
Options
Intensive ( ) : If the laundry is normal
and heavily soiled, “Intensive” option is
effective.
Rinse + ( ) : Add rinse once.
Dealy End :
1. Touch the Power button.
2. Select a washing programme.
3. Touch the Time Delay button and set time
required.
4. Touch the Start/Pause button.
You can set a time delay so that the washing
machine will start automatically and finish
after a specifed time interval.
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.
14

15
15
How to use washer
ybdetcelesebnacleveldeepSnipS
touching 'Spin' button repeatedly.
ylnOnipS
1. Touch the Power button.
2. Touch the Spin button to select RPM.
3. Touch the Start/Pause.
Spin
By touching the Temp. button the water
temperature can be selected.
- Cold
- 20℃, 30℃, 40℃, 60℃, 95℃
Water temperature can be selected
according to the program.
Temp.
When you select , it will still rotate for a
short time to drain quickly.
NOTE
If the laundry is heavily soiled, “Pre Wash”
course is effective.
1. Touch the Power button.
2. Select a cycle.
3. Touch the Pre Wash button.
4. Touch the Start/Pause button.
PreWash

16
How to use washer
The Beep on/off function can be set only during the washing cycle.
1. Touch the Power button.
2. Touch the Start/Pause button.
3. Touch and hold the Turbowash and Pre Wash
button simultaneously for three seconds to set
Beep on/off function.
Once the Beep on/off function is set, the setting
is memorized even after the power is turned off.
Locking the control pane l
1. Touch and hold the Delay End and Add Item
for 3 seconds.
2. A beeper will sound, and ' ' will appear on
the LED display.
When the child lock is set, all buttons are
locked except the Power button.
Select this function to lock the buttons on the control assembly to prevent tampering.
"Child Lock" can be set only during the washing cycle.
Unlocking the control pane l
1.
2. A beeper will sound and the remaining time
for the current programme will reappear on
the LED display.
Child Lock
Beep On / Off
NOTE
Turning off the power will not reset the
child lock function. You must deactivate
child lock before you can access any
other functions.
NOTE
If you want to turn the Beeper off,
simply repeat this process.
Touch and hold the Delay End and Add Item
for 3 seconds.

17
How to use washer
Tub Clean is a special cycle to clean the inside of the washing machine.
A higher water level is used in this cycle at higher spin speed. Perform this cycle regularly.
1. Remove any clothing or items from the
washer and close the door.
2. Open the dispenser drawer and add Anti
limescale(e.g. Calgon) to the main wash
compartment.
3. Close the dispenser drawer slowly.
4.
Power On and select the TubClean .Then will be
displayed on the display.
5. Touch the Start/Pause button to start.
6. After the cycle is complete, leave the door
open to allow the washer door opening,
flexible gasket and door glass to dry.
“Door Lock” - For safety reasons, the
door will lock while machine is in use and the
“Door Lock” icon will light up. You can safely
open the door after the “Door Lock” icon
turns off.
While "Detecting" is shown on the
display the washing machine rotates slowly
and detects how much laundry is loaded in
the drum.
It will take a short time.
Tub Clean
Door Lock & Detecting
NOTE
Do not add any detergent to the detergent compartments.
Excessive suds may generate and leak from the washer.
CAUTION
If there is a child, be careful not to leave the door open for too long.

18
6. WIRING DIAGRAM/PCB LAYOUT
Main PCBA
Display PCBA
GY3GY6
123 123
BL6RD6NA4
NA4
BK
BL YL BK BR
BR
RD
L
RDBLBKYL
RD BLYLORBKYL
123 1 2 3
YL BK OR
1 2 3 123
RD BL YL
Motor
Pressure
Switch
Drain
Pump
1 2 3456 123456
OR WHPL
O
OR BK BL PU SB YL
WH RD
RPLWHSB
WH SB
1 2 1 2
123456
123456
123 123
WH
Heater
TH
GY BK
BL
BK GY
Main
12 12
12345
5 5
6
123456
Inlet V/V
YL/RD OR BK
Door S/W
YL/RDOR
123 4
123 4
BK
YL
1 1
BWYL
123
BR
BRBL
1 2 12
1 2 12
1 2 3 4
1 2 3 4
RD
11
RD
Power Cord
Noise Filter
Sub PCB
Auto Dispenser
123 4
1234
Vibration Sensor
Earth
Earth
11
Earth
1 1
1 2 3 4
1 2 3 4
5 5
1 2 34
1234
1234 1234
1234 1234 1234
56
123456 123456
123456

19
19
PCB Layout (Main)
:DVKHU+HDWHU
'RRU6ZLWFK
,QOHW9DOYH
:DWHU6HQVRU
:DWHU6HQVRU
6XE3&%
3&%32:(5
0RWRU6WDWRU&RQWURO
'LVSOD\
'UDLQ0RWRU
<HOORZUHG GRRUVZLWFK
%ODFNGRRUVZLWFK
2UDQJHGRRUVZLWFK
:KLWHUHGFRPPRQ
:KLWHEODFNPDLQ
:KLWHJUD\
<HOORZ0RWRUB287
%ODFN*1'0RWRU6:
%URZQ*1'0RWRU6:
5HG6DIHW\6:
SUH
%OXHZKLWH WKHUPLVWRU
%OXHFRPPRQ
9LRORHWSUHVVXUHVZLWFK
2UDQJHSUHVVXUHVZLWFK
988::9
ş5aŁ
%/'&SXPS
:KLWH8
%ODFN9
<HOORZ:

20
20
PCB Layout (Sub)
H]'LVSHQVH0RGXOH
H]'LVSHQVH0RGXOH
<HOORZ0RWRUB287
2UDQJH0RWRUB287
%ODFN*1'0RWRU6:
%URZQ*1'0RWRU6:
5HG6DIHW\6:
0DLQ3&%
<HOORZ0RWRUB287
%ODFN*1'0RWRU6:
%URZQ*1'0RWRU6:
5HG6DIHW\6:
%OXH(OHFB
3XUSOH(OHFB
6N\EOXH(OHFB
<HOORZ(OHFB