LG WF-145WG User manual

WASHING MACHINE
SERVICE MANUAL
MODELS: WF-145WG / WF-155WG
CAUTION
Before servicing the washer, Read the safety precautions in the manual.

2
SAFETY PRECAUTION!
DISASSEMBLE POWER CORD BEFORE SERVING
RECONNECT ALL GROUNDING DEVICES
IMPORTANT SAFETY NOTICE !
This service information is intended for individuals
possessing adequate backgrounds of electrical,
electronic and mechanical experience.
Any attempt to repair this appliance may result in
personal injury or property damage.
The manufacturer or seller can not be responsible
for the interpretation of this information, nor can it
assume any liability in connection with its use.
CONTENTS
1. Specications ...........................................................................................................................................................................................3
2. Installation Instructions........................................................................................................................................................................4
3. Operating Instructions
3-1. Identication of Parts .................................................................................................................................................................10
3-2. Before Starting to Wash.............................................................................................................................................................11
3-3. Function of Each Button............................................................................................................................................................16
3-4. Washing Programs .....................................................................................................................................................................18
3-5. Other Functions ...........................................................................................................................................................................20
3-6. Care and Maintenance...............................................................................................................................................................26
4. Service Information
4-1. Wiring Diagram ............................................................................................................................................................................27
4-2. Program Time Chart ...................................................................................................................................................................28
4-3. Adjustmen ......................................................................................................................................................................................29
4-4. Disassembly Instruction ............................................................................................................................................................30
4-5. Test Running without water ....................................................................................................................................................33
4-6. Trouble Shooting against Common Washing Problems ...............................................................................................34
4-7. Trouble Shooting According to Error Message .................................................................................................................35
4-8. How to Diagnose and Repair by Symptom .........................................................................................................................37
5. Exploded View .......................................................................................................................................................................................49
6. Replacement Part List..........................................................................................................................................................................53

3
1. SPECIFICATIONS
POWER SOURSE
INPUT
CAPACITY
INNER TUB
INLET WATER
PRESSURE
SPIN SPEED
DIM.
WEIGHT
PROGRAM
WATER LEVEL
RESERVATION
UNBALANCE
SWITCH
LID INTERLOCK
SWITCH
CHILD LOCK
LINT FILTER
SOFTENER
DISPENSER
DETERGENT
DISPENSER
BLEACH INLET
AUTO POWER OFF
Refer to rating label on the back of Washer
Refer to rating label on the back of Washer
Refer to rating label on the back of Washer
Plastic / Stainless
0.3kgf/cm 2~ 8kgf/cm2
50Hz : 680 50 rpm
60Hz : 730 50 rpm
Refer to rating label on the back of Washer
Refer to rating label on the back of Washer
Normal, Wool, Duvet, School Care, Pre Wash + Normal, Quick Wash, Extra Clean, Tub Clean
10 Stages
Available for 3 ~ 18 Hr
B.P Sensor
Magnet Sensor
Applied
Single / Double
Applied
Applied
Applied
Applied

4
2-1. HOW TO ADJUST LEVEL
2. INSTALLATION INSTRUCTIONS
1
2
Improper installation of the washer may cause noise and malfunctioning.
1. The ventilating openings in the base area must not be obstructed be
carpeting when the washing machine is installed on a carpeted floor.
2. Install the washing machine on a level and firm surface, any tilt should
be less than 1° .
Installation area
• Install the washer on flat and firm
surface.
Checking level
• Open the lid, and check if the
washer is correctly leveled by
looking down from the top.
How to use the adjusting plates
• Use the adjusting plates to level the washer
when the adjustable legs cannot cover the gap.
Turn the adjustable legs to set the
washer horizontal (2 EA).
Adjustable leg

5
Confirming level
• Place the washer to original position
and confirm the level.
Checking slope
• If installation surface is tilted, the
washer will be shaken.
Horizontal setting
• Lift up the front of the washer and
adjust level by turning the
adjustable legs clockwise or using
the adjusting plate.
Distance between drain hose and the wall
• Distance between drain hose and the wall should
be more than 10 cm, and the distance between the
other part and the wall should be more than 2 cm.
More than 2cm
More than 10cm
More than 2cm

6
2-2. CONNECTING WATER SUPPLY HOSE
Before connecting Water Supply Hose to water tap, check your hose type and choose correct
instruction. Water Supply Hose may vary according to the country.
Make sure connect blue inlet hose to COLD water tab, and orange inlet hose to HOT water tab.
Connecting Water Supply Hose to water tap
Untighten the screw
Untighten the screw of the connector so that the tap can be
placed in the middle.
{Normal tab without thread & screw type inlet hose.)
1
Normal Type
Fixing the connector to the tap
Push the upper connector up till the rubber packing is in tight
contact with the tap. Then tighten the 4 screws.
2
Attach the water supply hose to the connector
Push the water supply hose vertically upwards so that the rubber
seal within the hose can adhere completely to the tap.
3
Fixing the connector of connector and water supply hose
Attach the water supply hose to the connector
and then tighten it by screwing it to the right.
4
Check the connection of water supply hose and the connector
After connecting the hose, open the tap to check for any water leakage.
In case of water leakage, close the tap and start again from step 1.
5
Rubber packing
Connector
Water supply hose

Note
7
(NORMAL TAB WITHOUY THREAD & ONE TOUCH TYPE INLET HOSE.)
One Touch Type
Separate Middle connector from Water Supply Hose
Separate Middle connector from the Water
Supply Hose by pulling the Pressing Rod and
the Pressing Handle that is attached to the
Water Supply Hose while pressing them.
1
Fixing Connectors to the Tap
Push the upper connector up till the rubber packing is in tight
contact with the tap.
Then tighten the 4 screws.
3
Fixing Upper Connector and Middle Connector
Remove the fixed sticker in between the Upper
and Middle Connectors.
Tighten the connectors by holding one connector
and twist middle connector to the right.
4
Connecting Middle Connector and Water Supply Hose
Press down the pressing rod of the Water
Supply Hose which was separated from middle
connector(refer to Step1) and then join it to
the middle connector.
5
Checking the water leakage
After connecting the hose, open the tap to
check for any water leakage.
In case of water leakage, close the tap and start
again from step 1.
If you skip step1, it may cause water leakage.
6
Conector
Medio Etiqueta Fija
Manija de Presión
Barra de Presión
Manguera de Suministro de Agua
Empaque de Caucho
Tornillo
Etiqueta Fija
Empaque de Caucho
Placa Guía
Conector
Conector
Etiqueta Fijada
Conector
Medio Conector
Medio
Conector
Manguera de Suministro de Agua
Barra de Presión Manijade Presión
Loosen the fixed nuts to connect the connector to the tap
Untighten the screw of the connector so that the tap can
be placed in the middle.
In case the tap is large.
If the tap diameter is too large or is square,
open the 4 screw and take out the guide
plate and follow step 1.
2
Fixed Stiicker
Pressing Handle
Pressing Rod
Water Supply Hose
Middle connector
Rubber packing
Screw
Fixed sticker
Guide plate
Connector
Connector
Rubber packing
Connector
Middle
Connector
Pressing handle
Middle
Connector
Fixed sticker
Pressing rod
Water Supply Hose

8
Screw Type
Attach the water supply hose to the tap.
Push the water supply hose up so that the rubber
packing within the hose can adhere completely
to the tap.
1
Connect the water supply hose to the tap.
Connect the water supply hose to the tap and then tighten
it by screwing it to the right.
2
Check water leakage.
After connecting the hose, open the faucet to
check for any water leakage.
Connect the water supply hose to inlet valve of
the washing machine, and then lock it by
turning the hose connecting part.
Check to see if there is a rubber seal inside the
connector.
3
Connecting Water Supply Hose to the machine
Water Supply Hose
Rubber Packing
Water
tap
Hose connector
Rubber seal

9
2-3. CONNECT THE DRAIN HOSE
For pump model
• Do not install the washer where it is directly exposed to sunlight,
wind, rain etc.
• Plug the power cord of this washer into a properly installed
standard electrical outlet that is switched & earthed.
• Connect the drain hose to the
outlet of the drain pump located
at the rear of the washing
machine.
• Attach the clip to the drain hose.
And then push it toward the body
of the washing machine as
indicated by the arrow.
• Check that the drain hose is
hung up over the edge of the
laundry tub.
• Do not use an extension hose.
NOTE : • Never lay down the drain hose, as water will be discharged.
• Be sure the drain hose is properly routed so it will not kink or lift from the sink.
• The discharge height should be approximately 0.9~1.2m from the floor.
• Connect the drain hose adjusting the length of it not to be dropped. If drain hose is dropped the
drainage could be poor because of blockage in the hose.
For non - pump model
• Connect the drain hose to the outlet of the drain
located at the back side of the washing machine.
• Fix the drain hose with the clip.
And then push it toward the body as in the figure.
• Keep it downward while the washing machine is working.
• Ensure the hose is free from kinking.
Drain Hose
0.9~1.2m
Within 50mm
Hose
Guide

10
3-1. IDENTIFICATION OF PARTS
3. OPERATING INSTRUCTION
LINT FILTER
Clean regularly to stop
linting on the clothes load.

Do not wash fabrics containing ammable materials
(waxes, cleaning uids, etc.).
Load Size
The WATER LEVEL should just cover the clothes. Adjust the load size
accordingly. Loosely load clothes no higher than the top row of holes in
the washer tub. To add items after washer has started, press START
button and submerge additional items. Close the lid and press START
button again to restart.
Light and Large-sized clothing
Clothes like downs and woollens are light weight, large and oat easily.
Use a nylon net and wash them in a small amount of water. If the laundry oats during the wash cycle,
it may become damaged. Use dissolved Detergent to prevent the Detergent from clumping.
Long laundry items
Use nylon nets for long, DELICATE items. For laundry with long strings or long length , a net will
prevent tangling during washing. Fasten zippers, hook, and strings to make sure that these items
don't snag on other clothes.
Nylon net is not supplied by LG.
3-2. BEFORE STARTING TO WASH
Care Labels
Sorting
Pretreatment on stains or heavy soil
Check before Loading
Loading
* Look for a care label on your clothes. This will tell you about the fabric content of your garment
and how it should be washed.
Sort clothes into loads that can be washed with the same wash cycle, Water Temperature and spin speed.
To get the best results, dierent fabrics need to be washed in dierent ways.
tSOIL (Heavy, Normal, Light) Separate clothes according to the type and amount of soil.
tCOLOR (Whites, Lights, Darks) Separate white fabrics from colored fabrics.
tLINT (Lint producers, Collectors) Separate lint producers and lint collectors.
Lint Producers Terry cloth, Chenile, Towels, Nappies, Diapers
Lint Collectors Synthetics, Corduroy, Permanent Press, Socks
tCheck all pockets to make sure that they are empty. Things such as nails, hairclips, matches, pens, coins,
and keys can damage both your washer and your clothes.
tMend any torn garments or loose buttons. Tears or holes may become larger during washing.
tRemove belts, underwires, etc. to prevent damage to the machine or your clothes.
tPretreat any dirt and stains.
t.BLFTVSFUIFDMPUIFTBSFXBTIBCMFJOXBUFS
t$IFDLUIFXBTIJOHJOTUSVDUJPOT.
t3FNPWFUJTTVFJOQPDLFUT.
t1SFUSFBUTIJSUDPMMBSTBOEDVòTXJUIBQSFXBTIQSPEVDUPSMJRVJE%FUFSHFOUXIFOQMBDJOHUIFNJOUIFXBTIFS#FGPSFXBTIJOHUSFBUTQFDJBMTUBJOTXJUICBSTPBQTMJRVJE%FUFSHFOUPSBQBTUFPGXBUFSBOEHSBOVMBS%FUFSHFOUt6TFBQSFUSFBUTPJMBOETUBJOSFNPWFSTreat stains AS SOON AS POSSIBLE. The longer they are left the harder they are to remove.
Fire Hazard
Never place items in the washer that are
dampened with gasoline or other ammable
uids.
No washer can completely remove oil.
Do not dry anything that has ever had any type
of oil on it (including cooking oils).
Doing so can result in death, explosion, or fire.
WARNING
WIRE
11

12
Amount of WATER LEVEL
Water Temperature
Using Water
• This machine detects the quantity of laundry automatically, then sets the WATER LEVEL and
proper amount of Detergent.
• When you select a wash program, the WATER LEVEL and amount of
Detergent (to be used) will be shown on the control panel.
• The following table shows the amount of water.
•
laundry even though the same WATER LEVEL is indicated on the control panel.
• The machine sets the appropriate temperature automatically according to the wash program .
• You can change the Water Temperature by pressing the WATER TEMP. button.
• The temperature of the water impacts the efi ectiveness of alllaundry additives and therefore, the cleaning results. We
recommend temperatures of:
- HOT 49~60°C…(120-140 F) White items, diapers, underclothing and heavily soiled, colorfast items.
- WARM 29~40°C…(85-105F) Most items
- COLD* 18~24°C…(65-75 F) Only very bright colors with light soil.
• When washing in COLD water additional steps may be needed:
- Adjust Detergent amount and pre-dissolve Detergent in WARM water
- Pretreat spots and stains
- Soak heavily soiled items
- Use appropriate bleach
* Temperature below 18°C…(65 F) will not activate laundry additives and may cause lint, residue, poor cleaning, etc. In addition,
Detergent manufactures and care labels define COLD water as 26~29°C…(80-85 F).
[Minimum water amount]
It depends on laundry load and washer model. Or manually you can pour a certain amount water into tub directly
to some height. That’s because if water level reaches to the some height sensed by washer itself, washer
automatically operates. In other words, it is needed to pour water to the point when washer starts operating.
Note
If iron is present in the water the clothes may become an all-over yellow or they may be stained with brown or
for severe cases.
Note
The dispenser drawer contains 2 compartments:
• Liquid Fabric Softener
• Liquid or Powder Low-Sudsing, High-Efi ciency Detergent
The dispenser automatically dispenses additives at the proper time in the wash cycle.
1. Slowly open the dispenser drawer by pulling the drawer out until it stops.
2. After adding laundry products, slowly close the dispenser drawer. Closing the drawer
too quickly could result in early dispensing of additives.
• Avoid overfilling or splashing when adding laundry products to the dispenser. Doing so
could result in early dispensing of laundry products.
At the end of the cycle, you may see water in the compartments. This is part of the normal
operation of the washer.
NOTE : Do not use bleach in the dispenser drawer.
Using the Dispenser Drawer

13
How much Detergent
Adding Detergent
The correctamount of Detergent will vary depending on the amount of soil in your clothes (Jeans and work cloches
may need more Detergent, whilebath towelsusuallyneed less.).
For liquid and concentrated Detergents, follow the recommendations of the Detergent manufacturer.
Note: To check you are using the correct amount of Detergent, lift the lid of your machine about half-way
through the wash. There should be a thin layer of foam over the surface of the water. Lots of foam may
look good, but it does not contribute to cleaning your clothes. No foam means not enough Detergent has
been used; soil and lint can settle back on the clothes or the washing machine.
If excess Detergent is used, the rinse will not be as clean and efficient. Also, it could cause environmental
pollution, so use it accordingly.
Add measured detergent to the detergent compartment of the dispenser drawer.
• Do not exceed the maximum fill line.
Detergent is ushed through the dispenser at the beginning of the wash phase. Either powdered or liquid detergent
can be used.
When using liquid detergent, make sure the detergent box and insert are in place. For powdered detergent, remove both
the detergent box and insert. Powdered detergent will not dispense with the detergent box and insert in place.
Detergent usage may need to be adjusted for water temperature, water hardness, size and soil level of the load.
Avoid using too muchdetergent in your washer, as it can lead to oversudsing and detergent residue being left on
the clothes.
Detergent
Choosing the right Detergent
Using Detergent
Using Detergent
Follow the Detergent package directions. Using too littleDetergent is acommon cause of laundry problems.
Use more Detergent if you have hard water, large loads, greasy or oilysoilsor lower Water Temperature.
We recommend the use of domestic Detergent, (powder, liquid or concentrated). Soap akes or granulated soap
powders shouldnot be used in your washing machine. When washing woolens remember to use Detergent
suitablefor washing woolens.
For Liquid Detergent For Powdered Detergent

14
Scrud (Waxy Build up)
Scrud is the name given to the waxy build-up that can occur within any washer when the fabric softener comes into
contact with Detergent. This build-up is not brought about by a fault in the machine.
If scrud is allowed to build-up in the machine it can result in stains on your clothes or an unpleasant smell in
your washer.
t6TJOHGBCSJDTPGUFOFSTQBSJOHMZt8IFOöMMJOHUIFEJTQFOTFSEPOPUTQMBTIPSPWFSöMMt$MFBOEJTQFOTFSBTTPPOBTUIFDZDMFJTöOJTIFEt$MFBOZPVSNBDIJOFSFHVMBSMZt$PMEXBUFSXBTIJOHJODSFBTFTUIFDIBODFPGUIJTCVJMEVQPDDVSSJOH8FSFDPNNFOEBSFHVMBS8"3.PS)05XBTIe.g. every 5th wash should be at least a warm one.
tFabric softener of thinner consistency is less likely to leave residue on the dispenser and contribute to a build-up.
Using Liquid Bleach
Using Fabric Softener
t$IFDLDMPUIJOHDBSFMBCFMGPSTQFDJBMJOTUSVDUJPOTBOETFQBSBUFUIFMBVOESZUPbe bleached
tDilute liquid chlorine bleach.
t.FBTVSFUIFSFDPNNFOEFEBNPVOUPGMJRVJECMFBDIDBSFGVMMZGPMMPXJOHinstructions on the bottle.
t#FGPSFTUBSUJOHUIFXBTIFSQPVSNFBTVSFEBNPVOUPGCMFBDIEJSFDUMZJOUPCMFBDIEJTQFOTFS"WPJETQMBTIJOHPSPWFSöMMJOHPowdered bleach should be mixed with water before pouring.
Bleach dispenser
( )
Never pour undiluted liquid bleach directly onto clothes or into the wash basket.
This may cause change of color or damage the laundry.
Do not pour powdered bleach into bleach dispenser.
Note
If you wish to use fabric softener we recommend
Dilute fabric softner with water.
Undiluted fabric softner may result in spots that look like oil stains.
Measure and add the recommended amount of softener into the compartment market
with this symbol
Follow manufacturer’s direction.
Fabric softener is automatically dispensed in the final rinse with indication beep.
If you want extra rinse, you must add fabric softner manually when indication
beep rings in the final rinse.
This maximize the fabric softner function.
Do not overfill. The dispenser hold max 35 mL.
Never add more than 35mL.
Overfilling can cause early dispensing of the fabric softener which could result in stained
clothes. A cup with a pouring spout will help you avoid spilling.
The effect of adding fabric softener may vary according to its viscosity. The stickier fabric
softener makes its effect the lower. For a sticky fabric softener it is recommended that it be
diluted with water, then be manually put during the time when the washer beeps several
times before the final rinse. This function informing correct time to dispense manually is
optionally applied to some models. Please keep it in mind that fabric softener has to be diluted
with water before dispensed and never poured directly on clothes.
Do not mix with detergent or bleach.
Never pour fabric softener directly on clothes. It may stain them.
Do not stop the washer during the first spin for timely dispensing.
Option washing is not designed to be used with fabric softener dispenser.

Follow fabric care label
instructions
15
SPECIAL GUIDE FOR STAIN REM OVAL
For successful stain removal:
• Remove stains promptly.
• Determine the kind of stain, then follow the recommended treatment in the stain removal
chart below.
• To pretreat stains, use a prewash product, liquid Detergent, or a paste made from
granular Detergent and water.
• Use COLD water on unknown stains because HOT water can set stains.
• Check care label instructions for treatments to avoid on specific fabrics.
• Check for colorfastness by testing stain remover on an inside seam.
• Rinse and wash items after stain removal.
Sta in Remova l
STAIN
Adhesive tape, chewing gum,
rubber cement
Baby formula, dairy products, egg
Beverages (coffee, tea, soda,
juice, alcoholic beverages)
Blood
Candle wax, crayon
Chocolate
Collar or cuff soil, cosmetics
Dye transfer on white fabric
Grass
Grease, oil, tar (butter, fats, salad
dressing, cooking oils, car grease,
motor oils)
Ink
Mildew, scorch
Mud
Mustard, tomato
Nail polish
Paint, varnish
Rust, brown or yellow
discoloration
Shoe polish
Apply ice. Scrape off excess. Place stain face down on paper towels. Saturate with prewash stain remover or
nonflammable dry cleaning fluid.
Use product containing enzymes to pretreat or soak stains.
Pretreat stain. Wash using COLD water and bleach safe for fabric.
Rinse with COLD water. Rub with bar soap. Or pretreat or soak with product containing enzymes. Wash using
bleach safe for fabric.
Scrape off surface wax. Place stain face down between paper towels. Press with warm iron until wax is
absorbed. Replace paper towels frequently. Treat remaining stain with prewash stain remover or
nonflammable dry cleaning fluid. Hand wash to remove solvent. Wash using bleach safe for fabric.
Pretreat or soak in WARM water using product containing enzymes. Wash using bleach safe for fabric.
Pretreat with prewash stain remover or rub with bar soap.
Use packaged color remover. Wash using bleach safe for fabric.
Pretreat or soak in WARM water using product containing enzymes. Wash using bleach safe for fabric.
Scrape residue from fabric. Pretreat. Wash using hottest water safe for fabric. For heavy stains and tar, apply
nonflammable dry cleaning fluid to back of stain. Replace towels under stain frequently. Rinse throughly.
Wash using hottest water safe for fabric.
Some inks may be impossible to remove. Washing may set some inks. Use prewash stain remover,
denatured alcohol or nonflammable dry cleaning fluid.
Wash with chlorine bleach if safe for fabric. Or, soak in oxygen bleach and HOT water before washing. Badly
mildewed fabrics may be permanently damaged.
Brush off dry mud. Pretreat or soak with product containing enzymes.
Pretreat with prewash stain remover. Wash using bleach safe for fabric.
May be impossible to remove. Place stain face down on paper towels. Apply nail polish remover to back of
stain. Repeat, replacing paper towels frequently. Do not use on acetate fabrics.
WATER BASED : Rinse fabric in cool water while stain is wet. Wash. Once paint is dry, it cannot be removed,
OIL BASED AND VARNISH : Use solvent recommended on can label. Rinse throughly before washing.
For spots, use rust remover safe for fabric. For discoloration of an entire load, use phosphate Detergent and
nonchlorine bleach. Do not use chlorine bleach because it may intensify discoloration.
LIQUID : Pretreat with a paste of granular Detergent and water. PASTE : Scrape residue from fabric. Pretreat
with prewash stain remover or nonflammable dry cleaning fluid. Rub Detergent into dampened area, Wash
using bleach safe for fabric.
TREATM ENT
Do not use or mix liquid chlorine bleach with other household chemicals such as toilet cleaners, rust removers, acid or products
containing ammonia. These mixtures can produce dangerous fumes which can cause serious injury or death.
To reduce the risk of fire or serious injury to persons or property, comply with the basic warnings listed below:
• Read and comply with all instructions on stain removal products.
• Keep stain removal products in their original labeled containers and out of children’s reach.
• Thoroughly wash any utensil used.
• Do not combine stain removal products, especially ammonia and chlorine bleach. Dangerous fumes may result.
• Never wash items which have been previously cleaned in, washed in, soaked in or spotted with gasoline, dry cleaning solvents
or other flammable or explosive substances because they give off vapors that could ignite or explode.
• Never use highly flammable solvents, such as gasoline, inside the home. Vapors can explode on contact with flames or sparks.
WARNING

3-3. FUNCTION OF EACH BUTTON
Course,
Normal Course
16

Display laundry
progress
Display remaining time, reservation
time, and alarm for trouble
•Laundry progress is
indicated here.
•Process to be done will
have light on. Process
in progress will blink
and process already
done will have light off.
•During operation this indicates time to
finish of laundry.
ex) indicates remaining time of
laundry, rinse, spin dry during
operation/pause.
•If there is a trouble, it blinks with
buzzer sound and indicates the source
of trouble. It will work normally after
troubleshooting.
Course 1 : Normal Wool Duvet
School Care
Course
Course 2 : Pre Wash+Normal Quick Wash
Extra Clean Tub Clean
Wash Course
Course
Course
17

3-4. WASHING PROGRAMS
Course
18

Course
19

Course
20