LG WM4270HVA Manuale utente
WASHING MACHINE
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE
PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT.
MODEL: WM4270H*A
Website : http://biz.lgservice.com
1
CONTENTS
1. Specifications .................................................................................................................................. 3
2. Features and Technical Explanation ............................................................................................ 4-6
3. Parts Identification ........................................................................................................................... 7
4. Installation and Test ................................................................................................................... 8-10
5. Operation ................................................................................................................................. 11-17
5-1. Control Panel Features ..................................................................................................... 11-13
5-2. Cycle Guide ........................................................................................................................... 14
5-3. Special Functions ................................................................................................................... 15
5-4. Explanation of Each Process ............................................................................................ 16-17
6. Test Mode ...................................................................................................................................... 18
6-1. Safety Caution ....................................................................................................................... 18
6-2. Load Test Mode ..................................................................................................................... 18
6-3. How To Read the Display in Load Test Mode ........................................................................ 18
7. Troubleshooting ............................................................................................................................ 19
7-1. Safety Caution ....................................................................................................................... 19
7-2. Error Mode Summary ....................................................................................................... 19-20
7-3. Troubleshooting With Error ............................................................................................... 21-27
7-5. Before using the Tag On function .......................................................................................... 33
7-4. Troubleshooting Else ........................................................................................................ 28-32
8. Component Testing Information .................................................................................................... 34
8-1. Filter Assembly (Line Filter) ................................................................................................... 34
8-2. Door Look Switch Assembly ............................................................................................. 35-36
8-3. Stator Assembly ................................................................................................................ 37-39
8-4. Pump Motor Assembly ........................................................................................................... 40
8-5. Inlet Valve Assembly .............................................................................................................. 41
8-6. Heater Assembly .................................................................................................................... 42
8-7. Thermistor Assembly ........................................................................................................ 43-44
9. Disassembly Instructions ........................................................................................................... 45-53
10. Exploded View ......................................................................................................................... 54-56
11. Wiring Diagram ............................................................................................................................. 57
10-1. Cabinet and Control Panel Assembly ................................................................................... 54
10-2. Drum and Tub Assembly ...................................................................................................... 55
10-3. Dispenser Assembly ............................................................................................................. 56
2
1. SPECIFICATIONS
WM4270H*AITE M
COLOR
POWER SUPPLY
PRODUCT WEIGHT
CYCLES
WASH/RINSE TEMPERATURES
SPIN SPEEDS
OPTIONS
WATER CIRCULATION
OPERATIONAL WATER PRESSURE
CONTROL TYPE
WASH CAPACITY [cu.ft. ]
DIMENSIONS
DELAY WASH
DOOR SWITCH TYPE
WATER LEVEL
LAUNDRY LOAD SENSING
ERROR DIAGNOSIS
AUTO POWER OFF
CHILD LOCK
STEAM
ELECTRIC POWER
CONSUMPTION
REVOLUTION
SPEED
WASHING
DRAIN MOTOR
WASH HEATER
WASH
SPIN
14
5
5
Steam, Pre Wash, Delay Wash, Custom PGM, Fresh Care, PGMSave,
Turbo Wash, Cold Wash, Extra Rinse, Rinse+Spin, Drum Light
Incorporated
14.5 – 142 PSI(100 – 980kPa)
Electronic
(4.5 DOE)
27”(W) X 29 3/4”(D) X 38 11/16”(H), 51”(D, door open)
up to 19 hours
PTC + Solenoid
10 steps (by sensor)
Incorporated
Incorporated
Incorporated
Incorporated
Incorporated
240 W
80 W
1000 W
46 rpm
0-1,300 rpm
Blue White, VCM
AC 120 V, 60 Hz
202.8lb (92kg)
To reduce therisk of injury to persons, adhere to all industry
recommen ded safetyproc edures including the use o gnolf
sleeved gloves and safetygl asses. F ailure to follow all of
the safety warnings in this manual could result in property
damage, injury to persons ordeath.
WAR NING
SMART NFC (Tag On function)
Smart Diagnosis function (3.0)
3
2. FEATURES & TECHNICAL EXPLANATION
2-1. FEATURES
Ultra Capacity
The larger drum enables not just higher head drop and stronger centrifugal force,
but also less tangling and wrinkling of the laundry. Heavier loads, such as king size
comforters, blankets, and curtains, can be washed.
Direct Drive System
The advanced brushless DC motor directly drives the drum without belt and pulley.
Tilted Drum and Extra Large Door Opening
Tilted drum and extra large opening make it possible to load and unload clothing
more easily.
Steam Washing
Steam washing features upgraded washing performance with low energy and water
consumption.
Automatic Wash Load Detection
Automatically detects the load and optimizes the washing time.
Built-in Heater
Internal heater helps to maintain water temperature at its optimum level for selected
cycles.
Child Lock
The child lock prevents children from pressing any button to change the settings
during operation.
SMART DIAGNOSIS TM
Should you experience any technical difficulty with your washing machine, is capable
of producing multiple distinct different motions for optimal washing performance
with very little noise and vibration. The motor assembly also contains fewer moving
parts, thus resulting in fewer repairs.
NFC (Tag On Function)
This feature uses LG Smart DiagnosisTM, Cycle Download, and Laundry Stats when
you touch the LG appliance’s Tag On logo with your NFC equipped smartphone.
4
2-2. NEURO FUZZY WASHING TIME OPTIMIZATION
To get the best washing performance, optimal time is determined by the water temperature,
the selected washing temperature, and the size of the load.
2-3. WATER LEVEL CONTROL
This model incorporates a pressure sensor which can sense the water level in the tub.
The water supply is stopped when the water level reaches the preset level, the washing
program then proceeds.
Spinning does not proceed until the water in the tub drains to a certain level.
water
temperature
washing time
rinsing time
the best
washing
performance
spin rhythm, time
load
size
NEURO-
FUZZY
selected
washing
temperature
SENSING EFFECT
PROCESSING
DETERMINATION
The door can be opened by pulling the door handle whenever washer is not in operation.
When the cycle is completed, the DOOR LOCKED light will turn off.
If a power failure has occurred while in operation, the door will unlock after 5 minutes.
Clicking sounds can be heard when the door is locked/unlocked.
2-4. DOOR CONTROL
5
2-5. THE DOOR CAN NOT BE OPENED
While program is operating.
When a power failed and power plug is taken out in operation.
While Door Lock lights turn on.
White the motor is in the process of inertial rotating, through the operation is paused.
2-6. DOOR LOCKED LAMP LIGHTS
When the frequency of water level is lower than 22.9 kHz.
(It can be canceled when the frequency is more than 23.8 kHz.)
When the temperature inside the tub is higher than 45°C and water level is not 25.5 kHz.
(It can be canceled when the water level is 25.5 kHz or the temperature inside the tub is lower than 40°C.)
2-7. CHILD LOCK
Use this option to prevent unwanted use of the washer. Press and hold Pre Wash button for 3
seconds to lock/unlock control.
When childlock is set, CHILD LOCK lights and all buttons are disabled except the POWER
button. You can lock the controls of the washer while washing.
CHILD LOCK lasts after the end of cycle. If you want to deactivate this function,
Press and hold thePre Wash button for 3 seconds.
2-8. WATER CIRCULATION
When washing and rinsing function of shower at the upper part of Gasket.
When washing, it continuously operates for 3 minutes and intermittently.
When rinsing, it continuously operates after completion of water supply.
2-9. STEAM
For tough stained clothes, sick room linens, or baby clothes.
Steam Wash is available with Sanitary, Bulk/Large, Perm. Press, Cotton/Normalcycles.
This option features upgraded washing performance with low energy and water consumption.
Do not load delicates such as wool, silk, and easily discolored clothes.
2-10. 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 antennaon the backof
your smart phone matches the position ofthe Tag On icon on the appliance.
NFC reading performance of your smart phone must be higher than
a certain level for using this function.
6
3. PARTS IDENTIFICATION
NOTE
Contact LG Customer Service at 1-800-243-0000 (1-888-542-2623 in Canada) if any accessories are missing.
For your safety and for extended product life, use only authorized components. The manufacturer is not responsible
for product malfunction or accidents caused by the use of separately purchased unauthorized components or parts.
The images in this guide may be different from the actual components and accessories, and are subject to change by
the manufacturer without prior notice for product improvement purposes.
Parts and Accessories
Parts
Pedestal
(sold separately)
Stacking Kit
(sold separately)
Accessories
Hot/cold water hoses Non-skid pads Caps for covering
shipping bolt holes
Wrench Tie strap Elbow bracket
(for securing drain hose)
Water inlets
Shipping
bolts
Power cord
Drain hose
INCLUDED Accessories OPTIONAL Accessories
Detergent
dispenser
drawer
(See page 20)
Door
Magnet Door
Plunger
(see page 3)
Control panel
(See page 9)
Door
seal
Water
circulation
and steam
nozzles
Tub
Leveling
feet
Drain pump filter cover
Drain pump filter
Drain hose
7
1
2
3
4
5
6
7
Before servicing, ask the customer what the trouble is.
When installing or repairing the washer, put on long gloves and safety glasses.
Check the setup (power supply is 120 VAC, remove the transit bolts, level the washer, etc.)
Check with the troubleshooting guide.
Plan your service method by referring to the disassembly instructions.
Service the unit.
After servicing, operate the appliance to see whether it functions correctly.
STANDARD INSTALLATION
The appliance should be installed as follows:
Remove the 4 shipping bolts
with the supplied wrench.
Remove the lower bolts fist.
It is easier that way.
Keep the shipping bolts and
spanner for future use.
Insert the 4 caps (provided)
into the hole.
Turn clockwise to raise;
counterclockwise to lower.
Turn the leveling feet to
adjust the appliance.
REMOVE THE SHIPPING
BOLTS
INSTALL THE APPLIANCE
ON A FLAT AND FIRM SURFACE
ADJUST THE
LEVELING
4. INSTALLATION & TEST
Keeping
Lower
Higher
8
CONNECT POWER PLUG
•Connect the power plug to the wall outlet.
•Avoid connecting several electric devices,
as doing so may cause a fire.
Verify that the rubber washer is inside of the
valve connector.
Tighten the inlet hose securely to prevent leaks.
Install the inlet hose to correct temperature
water tap.
Otherwise, it cause drips on the drawer panel
handle and drawer panel.
HOW TO CONNECT THE INLET HOSE
CONNECT THE DRAIN HOSE
The end of the drain hose should be placed less than 96” from the floor.
•Make sure that the hose is not twisted. •Avoid submerging the end of the hose.
Hot Cold
9
7TEST OPERATION
1Preparation for
washing.
•Connect the power plug to the
outlet.
•Connect the inlet hoses.
2Press the POWER button. 3Press the START/PAUSE
button.
•Listen for a click to determine if the
door has locked.
6Check the water heating
function.
•Press the Soil Level button
and the present temperature will
be displayed.
•Check if the drum rotates
clockwise and counterclockwise.
5Check the automatic reverse
rotation.
4Check the water supply.
•Check if water is supplied through
the detergent dispenser.
7Check the drain and spin
functions.
•Power off and the power on.
•Press the SPIN SPEED button.
•Press the START/PAUSE button.
•Check the spin and drain functions.
•Listen for a click to determine if the
door is unlocking.
8Press the START/PAUSE
button.
9Water removal
•If SERVICE is needed during
check, remove the remaining
water by pulling out the hose cap.
10
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