Lg F1 u1 bs series 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 : F1＊U1＊BS(1~9)

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 ....................................................................... 40

• Power Failure or no power ...................................................................................................... 40

• Vibration & Noise during spin ................................................................................................. 41

• Detergent & Softener does not flow in .................................................................................... 42

• Before using the Tag On function ......................................................................................... 45

• Water Leak ............................................................................................................................. 43

9. PART INSPECTION ........................................................................................................................ 47

9-1.FILTER ASSEMBLY (LINE FILTER) ......................................................................................... 47

9-2.DOOR LOCK SWITCH ASSEMBLY ......................................................................................... 48

9-3.STATOR ASSEMBLY ............................................................................................................... 50

9-4.

PUMP MOTOR ASSEMBLY

....................................................................................................... 53

9-5.INLET VALVE ASSEMBLY ....................................................................................................... 54

10. DISASSEMBLY INSTRUCTIONS .................................................................................................. 55

11. EXPLODED VIEW AND PART LIST .............................................................................................. 63

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 gla

sses.

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

F14U1＊BS(1~9) : No Spin / 400 / 800 / 1000 / 1200 / 1400

F12U1＊BS(1~9) : No Spin / 400 / 800 / 1000 / 1100 / 1200

46 rpm

100 ~ 1000 kPa (1.0 kgf / cm2~ 10.0 kgf / cm2)

Electronic

Refer to the Rating Label

F14U1(T or L)BS(1~9) : 600mm x 560mm x 850mm

F1＊U1(H\W\N\M\L))BS(1~9) : 600mm x 450mm x 850mm

Cotton, Cotton Large, Mix, Easy Care, Duvet, Sports Wear,

Dark Wash, Silent Wash, Gentle Care / Stain Care / Speed 14 /

Download Cycle , Allergy Care, Steam Refresh

Normal, Rinse+, Rinse Hold

PTC+Solenoid

by Pressure Sensor S/W

From 3 hours to 19 hours

Adapted

13 items

Adapted

SMART NFC (Tag On function)

Smart Diagnosis function (3.0)

155 W

490 W

37 W

1700 W

220 V - 240 V ~, 50 Hz

F14U1(T or L)BS(1~9) : 69kg

F1＊U1(H\W\N\M\L)BS(1-9):65kg

Refer to 1 page

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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 Wash

Wash the laundries in 1 hour with energy and water saving.

Tag on

This is a function that may use Diagnosis, Download Course, Washing

Coach, One Touch Washing, etc. when you touch the Tag On logo of

the washing machine by using your smartphone with NFC.

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.

2-5. NFC (Tag On Function)

The Tag On function can only be used with smart phones equipped

with the NFC function and based on the Android operating system (OS).

Position your smart phone so that the NFC antenna on the back of

your smart phone matches the position of the Tag On icon on the

appliance.

NFC reading performance of your smart phone must be higher than

a certain level for using this function.

3. PARTS IDENTIFICATION

(For detergent and

fabric softener)

Drawer

Drain hose

Transit bolts Power plug

Control panel

Drain pump filter

Lower cover cap

•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.

Drum

Door Drain plug

Adjustable feet

Accessories

Inlet hose Spanner

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.

Open the box and check appliance condition.

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.

Connect Drain Hose.

Connect power plug.

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).

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

1Preparation

for

washing.

· Connect the power plug to the

outlet.

· Connect the inlet hose.

2Touch the power button. 3Touch the START/PAUSE

button.

6Check the water heating.

· Touch the Wash and Spin

button simultaneously and the

present temperature will be

displayed.

· Check if the drum rotates

clockwise and counterclockwise.

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

· Touch the START PAUSE button.

· Check the spin and drain

functions. · Turn power off and then power on.

· To turn off, touch the power button

for 1sec

· 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

•Spin Speed level can be selected by

touching 'Spin' button repeatedly.

•Spin Only

1. Touch the Power button.

2. Touch the Spin button to select RPM.

3. Touch the Start/Pause.

• Turbo Wash ( ) :

Wash the laundries in 1 hour with energy

and water saving.

• Intensive ( ) : If the laundry is normal

and heavily soiled, “Intensive” option is

effective.

Wash ( ) Spin

•By touching the Temp. button the water

temperature can be selected.

- Cold

- 20°C, 30°C, 40°C, 60°C, 95°C

•Water temperature can be selected

according to the program.

Temp.

•Rinse plus ( ) : Add rinse once.

• Rinse Hold ( ) : The course is paused

until start button is touched again when

rinse is finished.

Rinse( )

1. Touch the Power button.

2. Select a cycle.

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 speciﬁed time interval.

Delay ( )

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.

When you select "No Spin", it will still

rotate for a short time with low speed to

drain quickly.

NOTE

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 Temp. and Rinse 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 panel

1. Touch and hold the Child Lock button 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 panel

1. Touch and hold the Child Lock button for

3 seconds.

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.

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.

Power On and then touch and hold Tub

Clean button for 3 seconds. Then

' '

and

tub clean pictogram will be displayed on the

LED 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.

WIRING DIAGRAM / PCB LAYOUT

Wiring Diagram

PCBLayout (Main)

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.TROUBLESHOOTING7-1. CHECK BEFORE SERVICE7-2. LOAD TEST MODE1Turn on, and touch ‘Medic Rinse’ and ‘Favorite’at the same time in 1 second.2The washer must be empty and the controls must be in the off state.3Touch Power with above two buttons pressed and then buzzer will sound.4Touch the Start/Pause button repeatedly to cycle through the test modes123456Display StatusNumbersCheck PointRemark012345678910111213

Turns on all light and locks the door.Tumble clockwise (right)Tumble clockwise (left)Low speed spinHigh speed spinInlet valve for prewash turns on.Inlet valve for main wash turns on.Inlet valve for Automizing turns on.Inlet valve for steam turns on.Heater turns on for 3 sec.Drain pump turns on.Water level Sensor for SteamSteam Heater turns on Off

PGM Version Informationrpm(42~50)rpm(42~50)rpm (60)rpm (130~140)Water level frequencyWater level frequencyWater level frequencyWater level frequencyWater temperatureWater level frequency Water level frequencyTSG temperature-

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