LG WM3997H*A Manuel utilisateur
WASHING MACHINE
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE
PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT.
Website:http://biz.lgservice.com
MODEL :WM3997H*A
69
MFL67307985 :. oN/P
JULY 2012 PRINTED IN KOREA
[
CONTENTS
WARNING:
Wash hands after handling
WM3997H*A
6
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.
RollerJets
Washing ball enhances the wash performance and reduces damage to the clothing.
The jets spray and help tumble clothes to enhance washing performance while
maintaining fabric care.
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.
7
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
8
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 STAIN CARE button for 3
seconds to lock/unlock control.
When child lock 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 the STAIN CARE 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/Normal, and Baby Wear cycles.
This option features upgraded washing performance with low energy and water consumption.
Do not load delicates such as wool, silk, and easily discolored clothes.
3. PARTS IDENTIFICATION
Accessories
10
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 V
AC, 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 boits 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.
Lower
Higher
REMOVE THE SHIPPING
BOLTS
INSTALL THE APPLIANCE
ON A FLAT AND FIRM SURFACE
ADJUST THE
LEVELING
4. INSTALLATION & TEST
Keeping
11
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
•Make sure that the hose is not twisted.
CONNECT POWER PLUG
The end of the drain hose should be placed less than 96” from the floor.
•Avoid submerging the end of the hose.
•Connect the power plug to the wall outlet.
•Avoid connecting several electric devices,
as doing so may cause a fire.
Hot Cold
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