LG WM3885HCA User manual

WASHING MACHINE
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE
PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT.
MODEL: WM3885H*CA / WM3875H*CA / LSWF3885HVS
Website : http://biz.lgservice.com

69
OCT. 2009 PRINTED IN KOREA P/No.: MFL30599154

4
CONTENTS
1. Specifications .................................................................................................................................. 5
2. Features and Technical Explanation ............................................................................................ 6-8
3. Parts Identification ........................................................................................................................... 9
4. Installation and Test ................................................................................................................. 10-12
5. Operation ................................................................................................................................. 13-19
5-1. Control Panel Features ..................................................................................................... 13-15
5-2. Cycle Guide ........................................................................................................................... 16
5-3. Special Functions ................................................................................................................... 17
5-4. Explanation of Each Process ............................................................................................ 18-19
6. Wiring Diagram / Program Chart .............................................................................................. 20-21
7. Test Mode ...................................................................................................................................... 22
7-1. Safety Caution ....................................................................................................................... 22
7-2. Load Test Mode ..................................................................................................................... 22
7-3. How To Read the Display in Load Test Mode ........................................................................ 23
7-4. How To Check the Water Level Frequency and Vibration Sensor Error ................................ 23
8. Troubleshooting ....................................................................................................................... 24-39
8-1. Safety Caution ....................................................................................................................... 24
8-2. Error Mode Summary ....................................................................................................... 24-25
8-3. Troubleshooting Summary ..................................................................................................... 26
8-4. Troubleshooting With Error ............................................................................................... 27-33
8-5. Troubleshooting Else ........................................................................................................ 34-39
9. Component Testing Information ............................................................................................... 40-54
9-1. Filter Assembly (Line Filter) ................................................................................................... 40
9-2. Door Look Switch Assembly ............................................................................................. 41-42
9-3. Stator Assembly ................................................................................................................ 43-45
9-4. Pump Motor Assembly ........................................................................................................... 46
9-5. Inlet Valve Assembly .............................................................................................................. 47
9-6. Heater Assembly .................................................................................................................... 48
9-7. Thermistor Assembly ........................................................................................................ 49-50
9-8. Steam Generator Assembly .............................................................................................. 51-52
9-9. Lamp ...................................................................................................................................... 53
9-10. Vibration sensor assembly ................................................................................................... 54
10. Disassembly Instructions ......................................................................................................... 55-65
11. Exploded View ......................................................................................................................... 66-68
11-1. Cabinet and Control Panel Assembly ................................................................................... 66
11-2. Drum and Tub Assembly ...................................................................................................... 67
11-3. Dispenser Assembly ............................................................................................................. 68

5
1. SPECIFICATIONS
ITEM WM3885H*CA / WM3875H*CA / LSWF3885HVS
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, DELAY WASH, STAIN CARE, CUSTOM PGM, COLD
WASHTM WASH/RINSE OPTIMIZERTM, EXTRA RINSE, CHILD
LOCK, DRUM LIGHT, FRESH CARE, LANGUAGE, PRE-WASH,
WATER PLUS, ENERGY USAGE DISPLAY
Incorporated
14.5-116 psi (100-800 kPa)
Electronic
4.13 (4.8 IEC)
27”(W) X 293/4”(D) X 3811/16”(H), 5013/16” (D, door open)
up to 19 hours
PTC + Solenoid
10 steps (by sensor)
Incorporated
Incorporated
Incorporated
Incorporated
Incorporated
280 W
80 W
1000 W
46 rpm
0-1,400 rpm
W : White, C : Chardonnay Steel, V : Graphite Steel
AC 120 V, 60 Hz
220.5 lbs (100 kg)

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 and SteamFreshTM
Steam washing features upgraded washing performance with low energy and water
consumption. SteamFreshTM cycle removes wrinkles from dry clothes.
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.
2-10. DRUM LIGHT
The drum light comes on when the power button is pressed. It goes off when the door is closed
and the washer starts operation.
The drum light remains off when the door is locked.
The drum light can be turned on while the washer is in operation by pressing the DELAY WASH
button for 3 seconds. The light will turn off automatically 4 minutes later.
The drum light comes on when the washing cycle is finished and goes off 4 minutes later.

9
3. PARTS IDENTIFICATION
Drain Hose
Lower Cover Cap
Magnetic Door Plunger
Adjustable Feet
Shipping Blots
Power Plug
Control Panel
Door Cleaning NozzleDoor Cleaning Nozzle
Water Circulation &
Steam Nozzle
Drum Light
Drum
Door Seal
Cold Water Inlet
Drain Pump FilterDrain Plug
•If the supply cord is
damaged, it must be
replaced by the
manufacturer or its
authorized service
technician in order to
avoid a hazard.
ACCESSORIES
Wrench Tie strap (Option)
to secure drain hose to standpipe,
inlet hose, or laundry tub
Hot/Cold (1 each)
Caps(4)
(for covering shipping
bolt holes)
Elbow Bracket
(for securing drain hose)
Non-skid pads
Hose
Hoses (1 Hot and 1 Cold)
Door
Dispenser
Hot Water Inlet
Air Vent for Safety
Back of Washer

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 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.
આRemove 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
આThe 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

12
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 WASH/RINSE 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.

13
WM3885H*CA / WM3875H*CA / LSWF3885HVS
5. OPERATION
5-1. CONTROL PANEL FEATURES
POWER ON/OFF BUTTON
AF
F
G
H
I
B
C
D
D H
F
IG
E
E
Press to turn the washer ON. Press again to turn the washer OFF.
NOTE: Pressing the ON/OFF button during a cycle will cancel that
cycle and any load settings will be lost.
CYCLE SELECTOR KNOB
Turn this knob to select the desired cycle. Once the desired
cycle has been selected, the standard presets will be shown in
the display. These settings can be adjusted using the cycle
setting buttons anytime before starting the cycle.
START/PAUSE BUTTON
Press this button to START the selected cycle. If the
washer is running, use this button to PAUSE the cycle without
losing the current settings.
NOTE: If you do not press the START/PAUSE button within 4
minutes of selecting a cycle, the washer automatically turns off.
STEAM BUTTON
Press the STEAM button to add steam to the selected cycle
for added cleaning power.
NOTE: Steam can be added to only the following cycles:
STEAM FRESH™, ALLERGIENE™, SANITARY, BRIGHT
WHITES™, BULKY/LARGE, PERM. PRESS,
COTTON/NORMAL, HEAVY DUTY and TOWELS.
DELAY WASH BUTTON
Press this button to delay the start of the wash cycle. Each
press of the button increases the delay time by one hour, up
to 19 hours.
SPECIAL FUNCTION BUTTONS
The special function buttons allow you to select additional
functions and will light when selected. Certain buttons
also allow you to activate secondary functions by pressing
and holding the button for 3 seconds. For detailed
information about the individual functions, please see the
following pages.
OPTION BUTTON
Press this button to select additional cycle options such as
WATER PLUS, PRE WASH and ENERGY USAGE
DISPLAY.
Press the button next to the desired option in the display
to select. The button will light to show the option has been
selected.
LCD DISPLAY
The display shows the settings, estimated time remaining,
options, and status messages for your Steam Washer™.
The light in the display will remain on through the cycle.
CYCLE SETTING BUTTONS
Use these buttons to select the desired cycle options for
the selected cycle. The current options are shown in the
display. Press the button for that option to view and select
other settings.
ABC

14
Power Button
•Use this button to turn the
power On/Off.
Status Indicator
•It shows elapsed time of the cycle the washer is
operating.
Cycle Selector Knob
•Rotate the Cycle selector knob to select the cycle
designed for different types of fabric and soil
levels.
Start/Pause
•Use this button to
Start/Stop the washer.

15
Option Button
• STEAM: Use the STEAM button to add steam to the cycle for the extra cleaning.
• WASH/RINSE OPTIMIZERTM:Use the WASH/RINSE OPTIMIZERTM button to select the water level, and
detergent mount automatically by the smart sensor and program.
• PRE-WASH: Use the PREWASH button to select to wash temporary before to start the course which you chosen.
• CUSTOM PGM: Use the CUSTOM PGM button to select the course that you has been saved by PGM SAVE.
• DELAY WASH: Once you have selected the cycle and other settings, press this button to delay the start of the wash cycle.
• COLDWASHTM : Use this function to wash without hot water and heating.
• EXTRA RINSE : This option will add an extra rinse cycle to the selected cycle.
• STAIN CARE : Select this option for heavily stained clothes, such as play clothes or work clothes.
• DRUM LIGHT : The drum is equipped with a blue LED light that illuminates when the washer is turned on.
• CHILD LOCK : Use this option to prevent unwanted use of the washer or to keep cycle settings from being
changed while the washer is operating.
Wash/Rinse, Spin speed, Soil Level, Beeper Button
•Select a water temperature based on the type of load you are washing.
•To change the spin speed, press the Spin Speed button repeatedly to cycle through available options.
•To change the soil level, press the Soil Level button repeatedly until the desired setting is on.
•Press repeatedly to adjust the volume of the Beeper.

1616
5-2. Cycle Guide
The cycle guide below shows the options and recommended fabric types for each cycle.
NOTE: To protect your garments, not every wash/rinse temperature, spin speed, soil level, or option is
available with every cycle.
=Available option

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5-3. SPECIAL FUNCTIONS
The option buttons also activate special functions, including CHILD LOCK, DRUM LIGHT, FRESH CARE, and
LANGUAGE. Press and hold the option button marked with the special function for 3 seconds to activate.
CHILD LOCK
Use this option to prevent unwanted use of the washer or to keep cycle settings from being
changed while the washer is operating. Press and hold the STAIN CARE button for 3
seconds to activate or deactivate CHILD LOCK. CHILD LOCK will be shown in the display,
and all controls are disabled except the ON/OFF button. The washer can be locked during a
cycle.
NOTE: 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.
DRUM LIGHT
The drum is equipped with a blue LED light that illuminates when the washer is turned on.
This light automatically turns off when the door is closed and the cycle starts. To turn on the
light during a cycle, press and hold the DELAY WASH button for 3 seconds. The drum light
will illuminate and then turn off automatically after 4 minutes.
LANGUAGE
This option allows you to change the language shown in the display. Once set, the selected
language will stay set even after the power is turned off. The display language options are
English, French, and Spanish; English is the default language.
To change the language:
Press the ON/OFF button to turn on the washer.
Press and hold the OPTION button for 3 seconds,
until the following screen appears in the display.
When OPTION is pushed, English is displayed as the default language.
Press the COLDWASHTM button to select ESPAÑOL (Spanish) or FRESH CARE for
FRANÇAIS (French).
1
2

18
5-4. Explanation of each process
No. Process Explanation
1. Stay • Electrical power is supplied.
•Washer is ready to work and the micom is in the active mode.
2. Water
supply
•After loading laundry and selecting a course and a cycle, water is
supplied and drum rotates.
•When a user selects Pre-wash course, water is supplied through pre
wash valve.
3.
Soaking
and washing
laundry
•To get laundry wet, drum rotates clockwise and counterclockwise.
•If water amount is insufficient at this time, the Inlet valve will supply
water again.
4. Heating and
washing
•The heater heats the water in drum to the selected water temperature
and drum rotates for washing.
5.
6.
Washing
and heating
/ washing
•When the water temperature reaches to the selected temperature,
the heating stops and only the drum rotates.
•If water temperature becomes lower than selected because of
re-supplied water, the heating starts again.
7. Washing • Fuzzy logic decides washing time according to the laundry load, water
temperature, and other factors.
8. Drainage • A pump motor drains the water from the drum.
•After sensing drained water amount by water level frequency, spin starts.
•When a heating course is selected, stay cooling process is performed to
decrease the water temperature gradually to prevent laundry from being
damaged and for safety reasons.
9. Untangling
(Sensing
eccent-
ricity)
•It balances laundry load and senses the eccentricity of the load, to only
allow spinning without vibration.
•If the eccentricity is worse than the allowed level, it repeats the
disentangling process. When the repeated time is more than allowed
level, it displays UE.
•If the eccentricity is good, the intermittent spin starts.
•During this process, the drain pump works for drainage intermittently.

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No. Process Explanation
A. Intermittent
spin
•To reach the correct set speed, the motor rotates clockwise and
counterclockwise directions after spin process starts.
•If the water level frequency is lower than 23.0 kHz,
a washer senses suds and starts suds removal process.
B. Rinse
spin
•In this process, the remaining water during washing process is
extracted and the selected speed is kept.
•Removing suds process is in active mode at this cycle.
C. Remaining
spin
•After spin finishes, the drum rotates by remaining spin power until it
stops. Motor power is off.
•This process is overlapped with next process.
D. Rinse water
supply
•Water supply for rinse process.
E. Rinse • Rinsing process.
F. Last
drainage
•After spin finishes and power is not supplied to motor, the drum
rotates by remaining spin power.
•If rinse hold is selected, the drainage is not proceeded after rinse
finishes.
G. Disentangling • The same as item 9.
H.
Intermittent spin
•The same as item A.
I. Main spin1 • The same as item B.
J. Main spin2 • At the end of a main spin, the spin speed will reach the selected rpm.
K. Remaining spin • The same with item C.
L. Disentangling • After spin finishes, disentangling starts to remove unbalanced
laundry.
M. End • After ‘end’ signal is displayed, it stays for 8 seconds and power is
automatically turned off. (Auto type door switch)
•After door switch is off, end signal is displayed in the case of
manual type and it takes around 2 minute to turn off door switch.