LG WD-1071FBB, WD-1271FBB, WD-1078FHB, WM-11716FHB, WM-13716FHB Service Manual
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WASHING MACHINE
SERVICE MANUAL
READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLE
CORRECTLY BEFORE OFFERING SERVICE.
MODEL : WD(M)-8070F(H)(B)
WD(M)-1070(5)F(H)(B)
WD(M)-1170(5)F(H)B
WD(M)-1270(5)F(H)B
WD(M)-1370(5)F(H)B
WD-8078FHB
WD(M)-8074F(H)B
WD(M)-1074(6)F(H)B
WD(M)-1174(6)F(H)B
WD(M)-1274(6)F(H)B
WD(M)-1374(6)F(H)B
WD-1078FHB
WM-1171(6)FHB
WM-1371(6)FHB
WD-1271FB(B)
WD-1071FB(B)
CAUTION
website : http://www.LGEservice.com
e-mail : http://LGEservice.com/techsup.html
DEC. 2001 PRINTED IN KOREA
P/No.:3828ER3008E
CONTENTS
1. SPECIFICATION............................................................................................................................3
2. FEATURES & TECHNICAL EXPLANATION ................................................................................ 4
3. PARTS IDENTIFICATION ............................................................................................................ 6
4. INSTALLATION ............................................................................................................................. 7
5. OPERATION ................................................................................................................................10
6. WIRING DIAGRAM......................................................................................................................12
7. PROGRAM CHART .....................................................................................................................13
8. TROUBLESHOOTING.................................................................................................................14
8-1.BEFORE PERFORMING SERVICE ....................................................................................14
8-2.QC TEST MODE..................................................................................................................14
8-3.HOW TO KNOW THE WATER LEVEL FREQUENCY.........................................................14
8-4.ERROR DISPLAY ................................................................................................................15
9. ERROR DIAGNOSIS AND CHECK LIST ....................................................................................17
9-1. DIAGNOSIS AND ANSWER FOR ABNORMAL OPERATION ...........................................17
9-2. FAULT DIAGNOSIS AND TROUBLESHOOTING ..............................................................20
10. DISASSEMBLY INSTRUCTIONS .............................................................................................30
11. EXPLODED VIEW AND PART LIST ..........................................................................................37
11-1. THE EXPLODED VIEW OF CABINET ASSEMBLY..........................................................37
11-2. THE EXPLODED VIEW OF CONTROL PANEL & DISPENSER ASSEMBLY..................39
11-3. THE EXPLODED VIEW OF DRUM & TUB ASSEMBLY ...................................................40
APPENDIX (Replacement parts list).......................................................................................42
2
3
1. SPECIFICATION
ITEM
POWER SUPPLY 220-240V~, 50Hz
PRODUCT WEIGHT
WASHING
SPIN (800rpm) 300W
DRAIN MOTOR 32W
WASH HEATER 2000W
WASH 45rpm
SPIN
WD(M)-8070(4)F(H)(B)/WD-8078FHB 400/600/800 rpm
WD(M)-1070(5)F(H)(B)/1074(6))F(H)B/WD-1078FHB/1071FB(B)
400/600/800/1000 rpm
WD(M)-1170(5)F(H)B/1174(6)F(H)B/WM-1171(6)FHB
400/600/800/1100 rpm
WD(M)-1270(5)F(H)B/1274(6)F(H)B/1271FB(B) 400/600/800/1000/1200 rpm
WD(M)-1370(5)F(H)B/1374(6)F(H)B/WM-1371(6)FHB(B)
400/600/800/1100/1300 rpm
OPERATION WATER PRESSURE 0.3-10kgf/ (30-1000kPa)
CONTROL TYPE Electronic
7.0kg
Synthetic (4.0kg), Delicate (3.0kg)
Wool (2.0kg) Hand Wash (2.0kg)
DIMENSION 600mm (W) 600mm (D) 850mm (H)
Whites, Coloureds, Synthetic, Delicate, Wool, Hand Wash
Rinse+Spin, Spin, Pump
OPTION Bio, Rinse +, Eco, Pre Wash
DOOR SWITCH TYPE Bi-Metal type
WATER LEVEL 9 steps (by sensor)
RESERVATION From 3 hours to 19 hours
SENSING OF THE LAUNDRY AMOUNT Adopted
FUZZY LOGIC Adopted
DISPLAY OF THE REMAINING TIME Adopted
ERROR DIAGNOSIS 7items 10items
POWER AUTO OFF Adopted
CHILD LOCK Adopted
AUTO RESTART Adopted
WD(M)-8070F(H)/1070(5)F(H)
67kg
190W
ELECTRICITY
CONSUMPTION
WASH CAPACITY
WASH PROGRAM
REVOLUTION
SPEED
63kg
150W
WD(M)-8070F(4)(H)B/1070(5)F(H)B/1170(5)F(H)B
WD(M)-1270(5)F(H)B/1370(5)F(H)B
WD(M)-1074(6)F(H)B/1174(6)F(H)B
WD(M)-1274(6)F(H)B/1374(6)F(H)B
WD-8078FHB/1078FHB
WM-1171(6)FHB
WM-1371(6)FHB
WD-1271FB(B), WD-1071FB(B)
Jumbo drum
LG’s jumbo drum can wash about 40% more per load than
conventional washing machine. A bigger drum improves the
wash performance.
More economical by Fuzzy Logic System
FUZZY Logic System detects the amount of load and water
temperature, and then determines the optimum water level
and washing time to minimize energy and water
consumption.
Child-Lock
The Child-Lock system has been developed to prevent
children from pressing any button to change the programme
during operation.
Low noise speed control system
By sensing the amount of load and balance, automatical
distributes load evenly to minimize the spinning noise level.
Auto Restart
Although the washing machine is turned off by a power failure,
it restarts automatically where it stopped when power is
supplied again. It will be the same when the machine
unplugged and is plugged in again.
2. FEATURES & TECHNICAL EXPLANATION
4
2-1.FEATURES
40%
2-2.DETERMINE WASHING TIME BY FUZZY LOGIC
To get the best washing performance optimal time is determined by sensing of 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.
When the water level reaches to the preset level the water supply is stopped, then the washing program proceeds.
Spinning does not proceed until the water in the tub reduces a certain level.
2-4.THE DOOR CAN NOT BE OPENED
While program is operating.
While Door Lock light turns on.
5
FUZZY
LOGIC
laundry
amount
selected
washing
temperature
water
temperature
washing time
rinse time
spin rhythm, time
the best
washing
performance
SENSING
PROCESSING
DETERMINATION
EFFECT
3. PARTS IDENTIFICATION
6
Hot/Cold (2EA)
Cold (1EA)
Wrench
Power plug
Control panel
Door
Lower cover
Adjustable feet
(For detergent and
fabric softener)
Drawer
Drum
Drain hose
Lower cover cap
Drain pump filter
Drain plug
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.
ACCESSORIES
Before servicing ask the customer what the trouble is.
Check the adjustment (power supply is 220-240V, remove the transit bolts....)
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 O K or NOT.
STANDARD INSTALLATION
The appliance should be installed as follows.
Remove the transit bolts Turn the adjustable feet to
(4EA:
) with supplied wrench. set the appliance horizontally.
Keep the transit bolts and
wrench for future use.
Insert the 4 caps provided
into the hole.
The appliance goes up by
rotating the feet clockwise.
The appliance comes down by
rotating the feet counterclockwise.
4. INSTALLATION
7
1
High
Low
REMOVE
THE TRANSIT BOLTS
INSTALL THE APPLIANCE ON
FLAT AND FIRM SURFACE
ADJUST THE
HORIZONTAL
HOW TO CONNECT INLET HOSE
Check that the rubber washer is inside of the
valve connector.
Connect the inlet hose firmly to prevent leak.
CONNECT DRAIN HOSE
CONNECT POWER PLUG
8
Make sure that the hose is not twisted.
The drain hose should be placed under 100cm from the floor.
Connect the power plug to the wall outlet.
Avoid connecting several electric devices,
It may be the cause of a fire.
Avoid submerging the end of the hose.
TEST OPERATION
9
Connect the power plug to In case of Coloureds program.
the outlet.
Connect the inlet hose.
Preparation for Press the power button. Press
the
Start/Pause
washing. button.
Press the button TEMP Check if the drum rotates Check if water is supplied
and the present temperature clockwise and through the detergent
will be displayed. counterclockwise. dispenser.
Power off and then power on.
Check if the door can be
opened after door lock lamp
turns off.
Turn off Spin and Temp after
pressing the Start/Pause button
and start the machine again.
Check drain and Spin.
If SVC is needed during check,
remove the remaining water by
pulling out the hose cap.
Check the water heating. Check automatic reverse Check the water supply.
turn.
Check drain and spin
Power off and open the
Water removal
door
10
5. OPERATION
2
Water temperature selector
Press the button to select water temperature.
The water temperature
[40 C 50 C 60 C Cold 30 C] can be
selected in Coloreds, or Synthetic.
95 C is selected for Whites only.
By pressing the button while operating the washer,
the present temperature is displayed.
Rinse hold
If you desire to leave fabrics in the machine without spinning after rinse to
prevent them wrinkling, you may select rinse hold by pressing the spin
button.
If you want to drain and spin, when Rinse Hold function is proceed, Press
the Start/Pause button to cancel the Rinse Hold function and select spin
speed or program. Press the Start/Pause button again to start program.
If you want to drain only, select the no spin or pump program.
If lamp turns on, that function has been selected.
Option
Bio
If you want to elimenate protein
stains(milk, blood, chocolate...),
you may select Bio by pressing
the option button.
[You can select Bio when
temperature is higher than 60 C
in Whites, Coloureds and
Synthetic.]
Rinse
+
If you wish to rinse more, the
Rinse+option will remove any
trace of detergents.
Eco
By selecting Eco, the water
temperature is reduced and
washing time is lengthened.
So you can economize in your
consumption of energy.
[You can select Eco when
temperature is higher than 60 C
in Whites, Coloureds and
Synthetic.]
Pre Wash
If the laundry is heavily soiled,
“Pre Wash” course is effective.
Pre Wash is available in
Coloureds, Whites and Synthetic
Program.
Child - lock
Child Lock system can be set and canceled by pressing
both [Temp.] and [Time Delay ] button simultaneously.
Once Child Lock is set, all button are inoperable.
Child Lock system can be set anytime even during
Power-off and operation.
It is automatically cancelled when an operational error
occur.
11
LED display
It displays the remaining time (Hour : Minute ) to
finish.
In case of abnormal operation, error indications are
displayed.
( )
See troubleshooting guide.
Wash program selector
9 programs can be set depending on the type of
the laundry.
By rotating the dial, [ Coloureds Synthetic
Delicate Wool Hand Wash Rinse + Spin
Spin Pump Whites ] can be selected.
(The opposite order is possible)
Start/Pause button
Use the button to start or
pause wash cycle.
The power turns off
automatically 4 minutes after
the pause button is pressed.
Time Delay
Press the button when delayed washing is needed.
When the button is pressed, [ ] is displayed,
maximum delay of [ ] hours can be set.
Each press advances time delay by the hour.
Use [Power]button to cancel [Time Delay].
[Time Delay] means the time required from the
present to the completion of washing.
Rapid
If you press the Rapid button in Whites or
Coloureds program, Rapid function is selected.
Rapid function reduces the whole time including
the Washing and Rinsing time.
Power button
Press the button to turn power
on and off.
Press the button to cancel the
delay finish.
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