LG WM3455H, WDP1103RD, WD-1409RD Service Manual

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website :http://biz.lgservice.com

e-mail : http://LGEservice.com/techsup.html

WASHING MACHINE

SERVICE MANUAL

CAUTION

READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLES

CORRECTLY BEFORE OFFERING SERVICE.

MODEL : WD-1409RD(1~9)/WDP1103RD(1~9)/WM3455H*

P/No.: MFL30574764

	CONTENTS
1.	SPECIFICATIONS .............................................................................................................................	3
2.	FEATURES & TECHNICAL EXPLANATION .....................................................................................	4
3.	PARTS IDENTIFICATION .................................................................................................................	6
4.	INSTALLATION ..................................................................................................................................	7
5.	OPERATION ...................................................................................................................................	12
6.	WIRING DIAGRAM / PCB LAYOUT / PROGRAM CHART ............................................................	14
7.	TROUBLESHOOTING ......................................................................................................................	18
	7-1.BEFORE PREFORMING SERVICE .........................................................................................	18
	7-2.LOAD TEST MODE ..................................................................................................................	18
	7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY .............................................................	19
	7-4.HOW TO KNOW TO TEMPERATURE OF EACH THERMISTOR AT OPERATING CONDITION .. 19
	7-5.ERROR DISPLAY .....................................................................................................................	20
	7-6.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
	• DHE (Dry Heater Error) ..........................................................................................................	31
	• Dry Heater Trouble .................................................................................................................	32
	• Dry Fan Motor Trouble ............................................................................................................	33
8.	TROUBLESHOOTING ELSE ..........................................................................................................	34
	• No Power ................................................................................................................................	34
	• Vibation & Noise in spin .........................................................................................................	35
	• Detergent & Softener does not flow in ....................................................................................	36
	• Water Leak .............................................................................................................................	37
9.	DISASSEMBLY INSTRUCTIONS ...................................................................................................	39
10. EXPLODED VIEW .........................................................................................................................		47

1.SPECIFICATION

	ITEM	WD-1409RD(1~9)/WDP1103RD(1~9)/WM3455H*

POWER SUPPLY		127V~, 60Hz
PRODUCT WEIGHT		72kg
	WASHING	140W
	SPIN	440W
ELECTRICITY	DRAIN MOTOR	30W
CONSUMPTION	STEAM HEATER	1100W
	WASH HEATER	2000W
	DRY HEATER	1500W
REVOLUTION	WASH	50rpm

SPEED	SPIN	No Spin/400/800/1000/1400
OPERATION WATER PRESSURE		1.0-8bar (100-800kPa)
CONTROL TYPE		Electronic
WASH & DRY CAPACITY		Refer to the Rating Label
DIMENSION		600mm(W)x640mm(D)x850mm(H)
WASH PROGRAM		Cotton, Cotton Quick. Synthetic, Delicate, Hand Wash,Wool,
		Quick30, Duvet, Baby Care
RINSE		Rinse+Spin, Rinse+, Normal+Hold
DOOR SWITCH TYPE		Bi-Metal type
WATER LEVEL		10 steps (by sensor)
RESERVATION		From 3 hours to 19 hours
SENSING OF THE LAUNDRY AMOUNT		Adapted
FUZZY LOGIC		Adapted
DISPLAY OF THE REMAINING TIME		Adapted
ERROR DIAGNOSIS		10 items
POWER AUTO OFF		Adapted
CHILD LOCK		Adapted
AUTO RESTART		Adapted
TIME SAVE		Adapted

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.

Automatic Wash Load Detection

Automatically detects the load and optimizes the washing time.

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	FUZZY		the best
washing	FUZZY	rinse time	washing
washing	LOGIC	rinse time	washing
temperature	LOGIC		performance
			performance
		spin rhythm, time
laundry
amount
SENSING	PROCESSING	DETERMINATION	EFFECT

2- WATER LEVEL CONTROL

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.

2-4. THE DOOR CAN NOT BE OPENED

While program is operating.

While Door Lock light turns on.

3. PARTS IDENTIFICATION

Drawer

Drum

Door

Drain Hose

Adjustable Feet

ACCESSORIES

Inlet hose(2EA)

Shipping Bolts

Power Pulg

If the supply cord is damaged, it must be replaced by the manufacturer or its authorized service technician in order to avoid a hazard.

Control Panel

Drain Plug

Drain Pump Filter

Lower Cover Cap

Spanner

4. INSTALLATION

INSTALLATION

The appliance should be installed as follows.

1Check 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			paper
stopper			paper

2 Open the box and check appliance condition.

Washer

Packing Support

(Packing support may not be used depending on models.)

Base Packing

		This leveling (or spanner) wrench must
		be used to remove the shipping bolts
		and level the unit. This should be kept
		for future use.
	Wrench	for future use.
	Wrench

3 Use spanner to remove transit bolts.

Without removal of transit bolts

Spin noise and shaking.

X 4 EA

Transit bolts

4 Confirm the distance between the appliance and the wall.

	More than 2cm	If the distance is less than 2cm,
	More than 2cm	the water supply hose will
		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	2. Push the connector up till the
attach the tap.	rubber packing is in tight contact
	with the tap. Then tighten the 4
	screws.

	Upper	Rubber
	Upper	packing
	Connector	packing
	Connector
		Rubber packing
		Upper
		Connector
	Fixing screw

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

Plate

Water supply hose

2. Normal Tap without thread & one touch type inlet hose (Single inlet models)

1.Untighten the upper connector screw.

Upper	Rubber
Connector	packing

Fixing screw

Middle connector

•In case the diameter of the tap is large remove the guide plate.

Guide plate

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.

Hose connector

Rubber seal

3.Connect the water supply hose to the middle connector, pushing the plate down.

Upper	Plate
Connector

Water supply hose

•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.

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.

about 100 cm

about 145 cm

about 105 cm

		max. 100 cm
min. 60 cm		max. 100 cm

Laundry tub

Hose

Retainer

Tie	Max. 100cm
strap	min. 60cm
strap

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.

8Check the horizontality with a level (Gage).

1Step

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

2Step

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.
	Higher	Lower	Lock nut
	Higher	Lower
Tighten	Tighten		10mm
			10mm
			Adjustable bolt
	Adjustable feet	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	4620ER3001B
	(Black)	(Gray)
	for Tile floors	for Wooden floors

3Step

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)

4Step

Tighten the lock nut against the base of the machine to lock the position leg.

Tighen the lock nut

9 Test operation
1	Preparation	2	Press the power button	3	Press the START/PAUSE
	for				button.
	washing.

·Connect the power plug to the outlet.

·Connect the inlet hose.

6 Check the water heating.

·Press the Option(Left) + Temp. button simultaneously and the

present temperature will be displayed. Page 13

7 Check drain and spin.

·Turn off Wash and Rinse after pressing the Start/Pause button and start the machine again.

·Check drain and spin.

· In case of Coloreds program.

5 Check automatic reverse turn.

4 Check the water supply.

· Check if the drum rotates	· Check if water is supplied through
clockwise and counterclockwise.	the detergent dispenser.

8 Power off and open the	9 Water removal.
door.

off and then power on.

	· If SVC is needed during check,
if the door can be	remove the remaining water by
after 3 minutes.	pulling out the hose cap.

5. OPERATION

Cycle Selector

•Rotate the Cycle selector knob to select the cycle designed for different types of fabric and soil levels.

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.

Power

• Use this button to turn the power On/Off.

Start/Pause

Option Button

•Use this button to Start/ Stop the washer.

•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.