LG F120TD, F122TD, WF-770TD, WD11020D Service Manual
website : http://biz.lgservice.com
e-mail : http://LGEservice.com/techsup.html
WASHING MACHINE
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLE
CORRECTLY BEFORE OFFERING SERVICE.
MODEL : F1*20TD(1~9) / F1*22TD(1~9) / WF-770**TD
FEB. 2007 PRINTED IN KOREA P/No.: MFL30574749
CONTENTS
1. SPECIFICATIONS ............................................................................................................................. 3
2. FEATURES & TECHNICAL EXPLANATION ..................................................................................... 4
3. PARTS IDENTIFICATION ................................................................................................................. 6
4. INSTALLATION .................................................................................................................................. 7
5. OPERATION ................................................................................................................................... 12
5-1. F1*22TD(1~9) .......................................................................................................................... 12
5-2. F1*20TD(1~9) .......................................................................................................................... 14
6. WIRING DIAGRAM / PCB LAYOUT / PROGRAM CHART ............................................................ 16
7. TROUBLESHOOTING......................................................................................................................19
7-1.BEFORE PREFORMING SERVICE ......................................................................................... 19
7-2.LOAD TEST MODE .................................................................................................................. 19
7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY ............................................................. 19
7-4.ERROR DISPLAY ..................................................................................................................... 20
7-5.TROUBLESHOOTING WITH ERROR ..................................................................................... 21
• IE (Water Inlet Error) .............................................................................................................. 21
• UE (Unbalanced Error) ........................................................................................................... 22
• OE (Water Outlet Error) .......................................................................................................... 23
• FE (Flow over Error) ............................................................................................................... 25
• PE (Pressure Sensor S/W Error) ............................................................................................ 26
• DE (Door open Error) ............................................................................................................. 27
• tE (Thermistor (Heating) Error) ............................................................................................... 28
• LE (Motor Lock Error) ............................................................................................................. 29
8. TROUBLESHOOTING WITHOUT ERROR CODES ...................................................................... 31
• PF (Power Failure or no power) ............................................................................................. 31
• Vibation & Noise in spin ......................................................................................................... 32
• Detergent & Softener does not flow in .................................................................................... 33
• Water Leak ............................................................................................................................. 34
9. DISASSEMBLY INSTRUCTIONS ................................................................................................... 36
10. EXPLODED VIEW ......................................................................................................................... 43
2
3
1. SPECIFICATION
ITEM
POWER SUPPLY
PRODUCT WEIGHT
OPERATION WATER PRESSURE
CONTROL TYPE
WASH CAPACITY
DIMENSION
DOOR SWITCH TYPE
WATER LEVEL
DELAY FINISH TIME
SENSING OF THE LAUNDRY AMOUNT
FUZZY LOGIC
DISPLAY OF THE REMAINING TIME
ERROR DIAGNOSIS
POWER AUTO OFF
CHILD LOCK
AUTO RESTART
ELECTRICITY
CONSUMPTION
WASHING
SPIN (1400rpm)
DRAIN MOTOR
WASH HEATER
REVOLUTION
SPEED
WASH
SPIN
F10**TD
F12**TD
F14**TD
No Spin~1000 rpm
No Spin~1200 rpm
No Spin~1400 rpm
50rpm
0.3-10kgf/cm
2
(30-1000kPa)
Electronic
Cotton 8kg (Max.)
600mm(W)x550mm(D)x850mm(H)
Bi-Metal typ
e
9 steps (by sensor
)
From 3 hours to 19 hour
s
Available
Available
Available
10 item
s
Available
Available
Available
135W
530W
30W
2000W
220-240V~, 50Hz
64kg
F1*20TD(1~9) / F1*22TD(1~9) / WF-770**TD
2. FEATURES & TECHNICAL EXPLANATION
2-1. FEATURES
Anti Crease function
With the alternate rotation of the drum, creasing in the laundry is
minimized.
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 (except Power button) to change the
programme during operation.
Low noise speed control system
By sensing the amount of load and balance, this system
automatically distributes load evenly to minimize the spinning
noise level.
Direct Drive System
The advanced Brushless DC motor rotates the drum directly
without a belt and a pulley.
Built-in heater
Internal heater automatically heats the water to the best
temperature on selected cycles.
4
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.
water
temperature
washing time
selected
washing
temperature
SENSING
laundry
amount
PROCESSING
FUZZY
LOGIC
rinse time
spin rhythm, time
DETERMINATION
2-3. WATER LEVEL CONTROL
This model uses a pressure sensor to determine the water level in the tub.
When the preset water level reached, water supply is stopped and the program proceeds.
Water needs to be below a preset level before spining will proceed.
2-4. THE DOOR CAN NOT BE OPENED
the best
washing
performance
EFFECT
While program is operating.
While Door Lock light turns on.
5
3. PARTS IDENTIFICATION
Drawer
(For datergent and
fabric softener)
Door
Power 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.
Control Panel
Drum
Drain Pump Filter
Lower cover
Adjustable Feet
ACCESSORIES
Inlet hose(1EA) Option : Hot / Cold(2EA) Spanner
Drain Plug
Lower cover cap
6
4. INSTALLATION
INSTALLATION
The appliance should be installed as follows.
1
Check the conditions of installation area.
1. Check level ground.
horizontal
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 humidity or any foreign objects under the feet.
Clean the floor, and there should not be any 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.
Purchased
Capet Paper Laminated
stopper
2
Open the box and check appliance condition.
Washer
Base Packing
Packing Support
Wrench
paper
This leveling (or spanner) wrench must
be used to remove the shipping bolts
and level the unit. This should be kept
for future use.
7
3
Use spanner to remove transit bolts.
Without removal of transit bolts
X 4 EA
Transit bolts
4
Confirm the distance between the appliance and the wall.
Spin noise and shaking.
More than 2cm
If the distance is less than 2cm,
the water supply hose will
kink or fold.
5
The tap connection and hose connection must be parallel.
1. Normal Tap without thread & screw type inlet hose.
1. Unscrew the fixing screw to
attach the tap.
Upper
Connector
Fixing screw
Rubber
packing
2. Push the connector up till the
rubber packing is in tight contact
with the tap. Then tighten the 4
screws.
Rubber packing
Upper
Connector
3. Push the water supply hose
vertically upwards so that the
rubber packing within in the hose
can adhere completely to the tap
and then tighten it by screwing it
to the right.
Upper
Connector
2. Normal Tap without thread & one touch type inlet hose (Single inlet models)
1. Untighten the upper connector
screw.
Upper
Connector
Fixing screw
• In case the diameter of the tap
is large remove the guide plate.
Guide plate
Rubber
packing
Middle
connector
Connector
2. Push the upper connector up
till the rubber packing is in
tight contact with the tap. Then
tighten the 4 screws.
Rubber packing
Upper
Connector
Middle
connector
• Turn the middle connector not to
have water leaked.
•Make sure that the rubber seal is
inside the hose connector.
3. Connect the water supply hose
to the middle connector, pushing
the plate down.
• To separate the water supply
hose from the middle connector
shut off the tap.
Then pull the inlet hose down,
pushing the plate down.
Plate
Water supply
hose
Upper
Connector
Water supply
hose
Plate
Hose connector
8
Rubber seal
• Make sure that there are no
kinks in the hose and that it is
not crushed.
6
Connect Drain Hose.
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.
Laundry tub
about 100 cm
about 145 cm
Hose
Retainer
Tie
strap
about 105 cm
max. 100 cm
min. 60 cm
Max. 100cm
min. 60cm
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.
7
Connect power plug.
Connect the power plug to the wall outlet. Avoid connecting several electric devices,
it may be the cause of a fire.
Max. 100cm
min. 60cm
9
8
Check the horizontality with a level (Gage).
1 Step
If washing machine legs are loose or not screwed, then screw up with the spanner wrench.
Using the level, level the washing machine from front to back and side to side.
A level
Higher
Tighten
Adjustable feet
2 Step
Using the spanner wrench to adjust leg for horizontality and try for Diagonal test.
Diagonal test
How to perform a diagonal test:
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.
Lock nut
Adjustable bolt
Tighten
Higher
Adjustable feet
Lower
Tighten
Adjustable feet
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.
Rubber Cup
4620ER3001A
(Black)
for Tile floors
4620ER3001B
(Gray)
for Wooden floors
3 Step
Perform a Rinse and Spin with some clothing in the machine.
To do this, put 2~3kg of clothing in the unit, power on the unit, press the Rinse and Spin
button, 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. (Try 2Step again)
10mm
4 Step
Tighten the lock nut against the base of the machine to lock the position leg.
Tighen the lock nut
10
9
Test operation
Preparation
1
for washing.
· Connect the power plug to the
outlet.
· Connect the inlet hose.
Check the water heating.
6
Press the power button.
2
· In case of cotton program.
Check automatic reverse turn.
5
Press the START/PAUSE
3
button.
Check the water supply.
4
· Press “Temp.” button,
the present temperature will
be displayed.
Check drain and spin.
7
· Power off and then power on.
Turn on Spin lamps after pressing
the Start/Pause button and Start
the machine again.
· Check drain and spin.
· Check if the drum rotates
clockwise and counterclockwise.
Power off and open the door.
8
· Power off and then power on.
· Check if the door can be opened
after Door Lock lamp turns off.
· Check if water is supplied through
the detergent dispenser.
Water removal.
9
· If SVC is needed during check,
remove the remaining water by
pulling out the hose cap.
11
5. OPERATION
5-1. F1*22TD(1~9)
Option
• Medic Rinse : Function that offers more purity in rinse operation by
maintaining the optimum temperature for elimination of
remnant detergent. It can be selected in all courses with the
exception of Quick 30. Hand Wash/Wool, Delicate course.
• Intensive : • If the laundry is heavily soiled “Intensive” option is effective.
• By selecting the Intensive option, the wash time may be
extended, depending on the program selected.
• Pre Wash : If the laundry is heavily soiled, “Pre Wash” course is effective.
Pre Wash is available in Cotton and Synthetic Program.
•Crease Care : If you want to prevent crease, select this button with spin
Wash program selector
• 13 programs can be set
depending on the type of
the laundry.
• If the power button is
pressed, all lamps are on
• By turning the dial,[Cotton -
Cotton Quick - Synthetic -
Duvet - Bulky - Quick 30 -
Rinse+Spin - Spin - Delicate -
Hand Wash/Wool - Bio Care -
Boiling Care - Baby Care
can be selected.
This is a bi-directional selector.
]
Child -Lock
•
Child Lock system can
be set and canceled by
pressing and holding
both Medic Rinse button
and Pre Wash button
simultaneously more
than 3 seconds.
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.
Tub Clean
• Tub Clean course can be set by
pressing and holding Intensive and
Crease Care button simultaneously.
• Tub Clean is special cycle to clean the
inside of the washer.
12
LOAD TEST MODE Page 19
- Press and Hold ‘Temp.’ & ‘Spin’ buttons and then press ‘Power’ button.
Water level frequency
- Press and Hold ‘Temp.’ & ‘Medic Rinse’ buttons simultaneously.
F1*22TD(1~9)
LED display
• Display the estimated remaining time
(Hour : Minute) to finish.
• In case of abnormal operation, error indications are
displayed.
( )
• See troubleshooting guide.
Time Delay & Beep ON/OFF
• Press the button when reservation 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.
•
The Beep on/off function can be set by
pressing and holding the Time Delay button
(About 3 seconds)
The Beep on/off function can be set at any time
and it is automatically cancelled in the event of
a power cut.
The Beep on/off function also works when
power is off.
.
Spin Button
• By pressing the Spin Button the spin speed
can be chosen
• F10**TD(1~9)
Rinse Hold/No spin/400/800/1000
• F12**TD(1~9)
Rinse Hold/No spin/400/800/1200
• F14**TD(1~9)
Rinse Hold/No spin/400/800/1200/1400
Power button
• Press the button to turn power on and off.
• Press the button to cancel the time delay.
Water temperature selector
• Press the button to select water temperature.
•95°C is selected for Cotton and Baby Care
only.
• By pressing the button while operating the
washer, the present temperature is displayed.
13
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