LG WD14030RD User manual

WASHING MACHINE
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLES
CORRECTLY BEFORE OFFERING SERVICE.
MODEL : WD14030RD
website : http://biz.lgservice.com
e-mail : http://LGEservice.com/techsup.html
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P/No.: MFL30574766
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1. SPECIFICATION
ITEM WD14030RD
POWER SUPPLY
PRODUCT WEIGHT
OPERATION WATER PRESSURE
CONTROL TYPE
WASH & DRY CAPACITY
DIMENSION
WASH PROGRAM
RINSE
DOOR SWITCH TYPE
WATER LEVEL
RESERVATION
SENSING OF THE LAUNDRY AMOUNT
FUZZY LOGIC
DISPLAY OF THE REMAINING TIME
ERROR DIAGNOSIS
POWER AUTO OFF
CHILD LOCK
AUTO RESTART
TIME SAVE
ELECTRICITY
CONSUMPTION
WASHING
SPIN
DRAIN MOTOR
STEAM HEATER
WASH HEATER
DRY HEATER
REVOLUTION
SPEED
WASH
SPIN No Spin/400/800/1000/1400
50rpm
1.0-8bar (100-800kPa)
Electronic
Refer to the Rating Label
600mm(W)x640mm(D)x850mm(H)
Cotton, Cotton Quick. Synthetic, Delicate, Hand Wash,Wool,
Quick30, Duvet, Baby Care
Rinse+Spin, Rinse+, Normal+Hold
Bi-Metal type
10 steps (by sensor)
From 3 hours to 19 hours
Adapted
Adapted
Adapted
10 items
Adapted
Adapted
Adapted
Adapted
140W
440W
30W
1100W
2000W
1500W
240V~, 50Hz
72kg
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2. FEATURES & TECHNICAL EXPLANATION
2-1. FEATURES
Direct Drive System
The advanced Brushless DC motor directly drives the drum without belt and pulley.
Water Circulation
Spray detergent solution and water over the load over continu.
Clothes are soaked more quickly and thoroughly during wash cycle.
The detergent suds can be removed more easily by the water shower during rinse cycle.
The water circulation system uses both water and detergent more efficiently.
Built-in Heater
Internal heater automatically heats the water to the best temperature on selected cycles.
Child Lock
The Child lock prevents children from pressing any button to change the settings during
operation.
More economical by Intelligent Wash System
Intelligent Wash 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.
Low noise speed control system
By sensing the amount of load and balance, it evenly distributes load to minimize the
spinning noise level.
Safety device (Aqua lock)
Aqua lock System is designed for detecting water leak during operation to prevent water
from spilling on the floor.
Automatic Wash Load Detection
Automatically detects the load and optimizes the washing time.
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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.
Water supply is stopped when the water level to the preset level, then washing program proceeds.
Spinning does not proceed until the water in the tub reduces to a certain level.
water
temperature
washing time
rinse time
the best
washing
performance
spin rhythm, time
laundry
amount
FUZZY
LOGIC
selected
washing
temperature
SENSING EFFECT PROCESSING DETERMINATION
2-4. THE DOOR CAN NOT BE OPENED
While program is operating.
While Door Lock light turns on.
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3. PARTS IDENTIFICATION
Drawer
Drum
Door
Drain Hose
Adjustable Feet
Shipping Bolts
Control Panel
Power Pulg
Drain Pump Filter
Drain Plug
Lower Cover Cap
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
Inlet hose(2EA) Spanner
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4. INSTALLATION
INSTALLATION
The appliance should be installed as follows.
Check the conditions of installation area.
1. Check level ground.
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.
1
Open the box and check appliance condition.
2
horizontal
Capet Paper Laminated
paper
Washer
Packing Support
(Packing support may not be used depending on models.)
Wrench
This leveling (or spanner) wrench must
be used to remove the shipping bolts
and level the unit. This should be kept
for future use.
Base Packing
Purchased
stopper
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Use spanner to remove transit bolts.
3
Confirm the distance between the appliance and the wall.
4
The tap connection and hose connection must be parallel.
5
Without removal of transit bolts
Spin noise and shaking.
X 4 EA
Transit bolts
More than 2cm If the distance is less than 2cm,
the water supply hose will
kink or fold.
1. Normal Tap without thread & screw type inlet hose.
1. Unscrew the fixing screw to
attach the tap.
2. Push the connector up till the
rubber packing is in tight contact
with the tap. Then tighten the 4
screws.
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.
1. Untighten the upper connector
screw.
2. Push the upper connector up
till the rubber packing is in
tight contact with the tap. Then
tighten the 4 screws.
3. Connect the water supply hose
to the middle connector, pushing
the plate down.
•In case the diameter of the tap
is large remove the guide plate. •Turn the middle connector not to
have water leaked.
•Make sure that the rubber seal is
inside the hose connector.
•To separate the water supply
hose from the middle connector
shut off the tap.
Then pull the inlet hose down,
pushing the plate down.
•Make sure that there are no
kinks in the hose and that it is
not crushed.
2. Normal Tap without thread & one touch type inlet hose (Single inlet models)
Upper
Connector
Fixing screw
Guide plate
Connector
Rubber packing
Upper
Connector
Rubber packing
Upper
Connector Plate
Water supply
hose
Rubber seal
Hose connector
Upper
Connector
Middle
connector
Rubber
packing
Upper
Connector
Fixing screw
Middle
connector
Rubber
packing
Upper
Connector
Plate
Water supply
hose
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Connect Drain Hose.
6
Connect power plug.
7
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.
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.
Connect the power plug to the wall outlet. Avoid connecting several electric devices,
it may be the cause of a fire.
about 100 cm
about 145 cm
about 105 cm
Laundry tub
Max. 100cm
min. 60cm
Max. 100cm
min. 60cm
Retainer
Tie
strap
Hose
min. 60 cm
max. 100 cm
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Check the horizontality with a level (Gage).
8
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.
2 Step
Using the spanner wrench to adjust leg for horizontality and try for Diagonal test.
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)
4 Step
Tighten the lock nut against the base of the machine to lock the position leg.
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.
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.
How to perform a diagonal test:
A level
Higher
Tighten
Adjustable feet
Diagonal test
Tighten
Adjustable feet
Higher
Tighten
Adjustable feet
Lower Lock nut
10mm
Adjustable bolt
Tighen the lock nut
4620ER3001B
(Gray)
for Wooden floors
Rubber Cup
4620ER3001A
(Black)
for Tile floors
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Test operation
9
11
1Preparation
for
washing.
·Connect the power plug to the
outlet.
·Connect the inlet hose.
2Press the power button. 3Press the START/PAUSE
button.
6Check the water heating.
·Press the Option(Left) + Temp.
button simultaneously and the
present temperature will be
displayed. Page 13
·Check if the drum rotates
clockwise and counterclockwise.
5
Check automatic reverse turn.
4Check the water supply.
·Check if water is supplied through
the detergent dispenser.
7Check drain and spin.
·Turn off Wash and Rinse after
pressing the Start/Pause button
and start the machine again.
·Check drain and spin.
·Power off and then power on.
·Check if the door can be
opened after 3 minutes.
8Power off and open the
door.
9Water removal.
·If SVC is needed during check,
remove the remaining water by
pulling out the hose cap.
·In case of Coloreds program.
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5. OPERATION
Cycle Selector
•Rotate the Cycle selector
knob to select the cycle
designed for different
types of fabric and soil
levels.
Power
•Use this button to turn the
power On/Off.
Start/Pause
•Use this button to Start/
Stop the washer.
Option Button
•Pre Wash : If the laundry is heavily soiled, “Pre Wash” Cotton is
recommended.
•Rinse+ : Used to additional rinse, which may assist in removing
traces of detergent residue.
•Normal+Hold : If you desire to leave fabrics in the machine without
spinning after rinse to prevent wrinkling, you may select Normal+Hold
by pressing the Option button.
•Rinse + Spin : Use this option to rinse and then spin.
Additional programs
•Time Delay : Allows the start of any cycle to be
delayed for 3~19 hours.
•Favorite : Favorite program allows you to store a
customized operation for next use.
•Intensive : If the laundry is heavily soiled “Intensive”
option is effective.
•Medic Rinse : For high effectiveness or more purity in
rinse operation you can choose Medic Rinse option.
Medic Rinse is default in Baby Care program.
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Beep on/off
•The Beep on/off function can be set by pressing
and holding the Option and Spin button
simultaneouly.
Child Lock
•Use this option to prevent unwanted
use of the washer. Press and hold
Option(Left) and Spin 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 washer while it is operating.
Dry Selector knob
•Dry programs selected by rotating
dry knob.
•[Lower Temp. - Iron Dry - Cupboard
Dry - Eco Dry - Time(30,60,120)]
can be selected. Tub Clean
•Tub Clean course can be set by
pressing and holding Intensive and
Pre Wash button simultaneously.
•Tub Clean is special cycle to clean
the inside of the washer.
Spin,Temp. Button
•To change the spin speed,
Press the Spin button to cycle
through available options.
•Select a water termperature
based on the type of load you
are washing.
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6. WIRING DIAGRAM / PCB LAYOUT / PROGRAM CHART
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LCD DisplayLCD DisplayCirculation Pump
Inlet Valve Control
LCD DisplayLCD DisplayAG Sensor
LCD DisplayLCD DisplayMotor Stator Control
LCD DisplayLCD DisplayHall Sensor Control
Measure R impossible here.
Just check cut-off.
15
PCB Layout (Main)
Pressure Switch
&
AQUA
&
Thermistor
Measure Hz impossible Here.
Just check cut-off.
CommonCommon
Short
Long
Door Switch
&
Drain Pump
V ~ U / U ~ W / W ~ V
R : 8 ~11Ω
W
U
V
Common
Door Switch
Measure R impossible here
Ha
(5~15 kΩ)
Hb
(5~15 kΩ)
Pre. Valve
(3.5~4.5 kΩ)
AG Valve
(3.5~4.5 kΩ)
LCD DisplayLCD DisplayLCD Display
LCD DisplayLCD DisplayPCB Power
LCD DisplayLCD DisplayHeater
(Next Page)
Common
Pressure Switch
AQUA
Thermistor for Wash
Drain Pump (152~176Ω)
Common
Common
Circulation Pump (152~176Ω)
Main Valve
(3.5~4.5 kΩ)
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PCB Layout (Power)
Common
Power Cord
Noise Filter
DRYWash
DRY
Resistance : 24.5 ~ 28.5 Ω
Only For Dry Combo
Wash
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Program Chart
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Before servicing ask the customer what the trouble is.
Check the adjustments. (Power supply : 240V~, Removal of transit bolts etc..)
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 OK or NOT.
7. TROUBLESHOOTING
7-1. BEFORE SVC CHECKING
7-2. LOAD TEST MODE
1Press and Hold ‘Option (Left)’ & ‘Rinse’ buttons
and then press ‘Power’ button.
2The washer must be empty and the controls must be in the off state.
3Press Power with above two buttons pressed and then buzzer will sound.
4Press the Start/Pause button repeatedly to cycle through the test modes
1
2
3
4
5
6
None
1 time
2 times
3 times
4 times
5 times
6 times
7 times
8 times
9 times
10 times
11 times
12 times
13 times
Turns on all lamps and locks the door.
Tumble clockwise.
Low speed Spin.
High speed Spin.
Inlet valve for prewash turns on.
Inlet valve for main wash turns on.
Inlet valve for hot water turns on.
Inlet valve for bleach turns on.
Tumble counterclockwise.
Heater turns on for 3 sec.
Circulation pump turns on.
Drain pump turns on.
Dry Fan / Dry Heater turn on.
Off
rpm (42~50)
rpm (55~65)
rpm (125~155)
Water level frequency (25~65)
Water level frequency (25~65)
Water level frequency (25~65)
Water level frequency (25~65)
rpm (42~50)
Water temperature
Water level frequency (25~65)
Water level frequency (25~65)
Dry Fan 6min. / Dry Heater 5min.
-
Number of times the
Start/Pause button is pressed Check Point Display Status
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7-3. HOW TO CHECK THE WATER LEVEL FREQUENCY
7-4. HOW TO KNOW TO TEMPERATURE OF EACH THERMISTOR
AT OPERATING CONDITION.
The digits means water level frequency. (10-1 kHz)
ex) 241 : Water level frequency = 241 x 10-1 kHz
24.1 kHz
Press the Intensive and Option(Left) button simultaneously.
Press the Temp. and Option(Left) button simultaneously.
Thermistor in tub temperature.
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If you press the Start/Pause button in error condition, any error except will disappear and the
machine will change into the pause status.
In case of , , if the error is not resolved within 20 sec., and in case of other errors,
if the error is not resolved within 4 min., power will be turned off automatically and the error only will be
blinked. But in the case of , power will not be turned off.
20
7-5. ERROR DISPLAY
ERROR SYMPTOM CAUSE
WATER INLET
ERROR
•Not reached to the water level(246) within 8 minutes
after water supplied or not reached to the preset
water level within 25 minutes. Page 21
1
UNBALANCE
ERROR
•The appliance is tilted.
•Laundry is gatherd to one side. Page 22
2WATER OUTLET
ERROR •Not fully drained within 10 minutes. Page 23
3OVERFLOW
ERROR
•Water is over flowing (over 8 level).
If " " is displayed, the drain pump operates
to drain the water automatically. Page 25
4PRESSURE SENSOR
S/W ERROR
•The sensor pressure switch is out of order.
Page 26
5DOOR OPEN
ERROR
•In case of operating the reservation function or the
other function with door opened. Close the door,
then the error display is resolved.
•The door switch is out of order. Page 27
6
THERMISTOR(HEATING)
ERROR
•The THERMISTOR is out of order. Page 28
7
MOTOR LOCKED
ERROR
•The connector in the LEAD WIRE ASSEMBLY is
not connected to the connector of STATOR
ASSEMBLY.
Reconnect or repair the connector.
•The hall sensor is out of order/defective.
Replace the STATOR ASSEMBLY Page 29
8
•Water leaks Page 37
9
POWER
FAILURE •The washer ecperienced a power failure Page 34
10
DRY HEATER
ERROR
•The Dry Heater is out of order
•The Connector of the Dry Heater is not connected
properly to the connector in the Main PWB ASSEMBLY
•The Dry fan motor is out of order Page 31
11
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