Daewoo DWF-240LWTP Service Manual

Service Manual

Auto Washer

Model: DWF-240LWTP

S/M No. :

Feb. 2013

✔ Caution

: In this Manual, some parts can be changed for improving,

their performance without notice in the parts list. So, if you need the latest parts information, please refer to PPL(Parts Price List) in Service Information Center (http://svc.dwe.co.kr).

WF240LWTP1

AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER

WASHING MACHINE

Contents

1. SPECIFICATIONS NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 2

2. STRUCTURE OF THE WASHING MACHINENNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 3

3. DIRECTIONS FOR INSTALLATION AND USENNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 4

INSTALLATION OF THE COVER UNDERNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 4

HOW TO INSTALL ON AN INCLINED PLACE NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 4

HOW TO CONNECT THE INLET HOSE NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 5

4. FEATURE AND TECHNICAL EXPLANATION NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 7

FEATURE OF THE WASHING MACHINE NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 7

WATER CURRENT TO ADJUST THE UNBALANCED LOADNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 7

AUTOMATIC WATER SUPPLY SYSTEM FOR BLANKET WASHNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 7

FUNCTIONAL PRINCIPLE OF BUBBLE WASHING MACHINENNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 8

AUTOMATIC DRAINING TIME ADJUSTMENT NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 8

AUTOMATIC UNBALANCE ADJUSTMENT NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 9

CIRCULATING-WATER COURSE AND LINT FILTERNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 9

LINT FILTERNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 10

RESIDUAL TIME DISPLAY NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 10

DRAIN MOTOR NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 10

GEAR MECHANISM ASS’Y NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 11

5. DIRECTIONS FOR DISASSEMBLY AND ADJUSTMENT NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 12

GEAR MECHANISM ASS’Y REPLACEMENT NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 12

MOTOR DRAIN AND VALVE REPLACEMENT NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 14

6. THE REPAIR METHOD OF GEAR MECHANISM FOR CLUTCH SPRING PROBLEM NNNNNNNNNNN 15

THE STRUCTURE OF GEAR MECHANISM ............................................................................................... 15

HOW TO CHECK THE CLUTCH SPRING PROBLEM ............................................................................... 16

THE PROCESS OF DISASSEMBLING ........................................................................................................ 17

THE PROCESS OF ASSEMBLING .............................................................................................................. 19

7. TROUBLE SHOOTING GUIDE NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 21

CONCERNING WATER SUPPLY..................................................................................................................21

CONCERNING WASHING............................................................................................................................. 22

CONCERNING DRAINING ............................................................................................................................ 23

CONCERNING SPINNING ............................................................................................................................ 24

CONCERNING OPERATING ........................................................................................................................ 25

8. PRESENTATION OF THE P.C.B ASS’Y NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 26

APPENDIX

WIRING DIAGRAM ......................................................................................................................................... 27

PARTS DIAGRAM .......................................................................................................................................... 28

PARTS LIST .................................................................................................................................................... 32

SEQUENCE CHART ...................................................................................................................................... 34

SPECIFICATIONS

1 POWER SOURCE 110V / 60Hz

2 POWER CONSUMPTION 650 W

3 WEIGHT 51kg

4 dimension (wxhxd) 630(w) x 1030(h) x 670(d) mm

5 WASHING COURSE

6 WATER CONSUMPTION 231 l

95 l

WATER LEVEL 81 l

SELECTOR 65 l

50 l

OPERATING WATER PRESSURE

0.3kgf/cm

~ 8kgf/cm

REVOLUTION 135

PER MINUTE 690

10 PULSATOR 9 WINGS

11 WATER LEVEL CONTROL ELECTRONIC SENSING

12 AUTOMATIC WATER SUPPLY O

13 GEAR MECHANISM ASS’Y SPUR GEAR

14 LINT FILTER 2

AUTOMATIC SOFTENER INPUT

FUNCTION FOR TIME DELAY

(RESERVATION)

17 DISPLAY OF RESIDUAL TIME O

18 FUNCTION FOR BUBBLE O

19 DRAIN TYPE PUMP & NON PUMP

20 AUTOMATIC POWER OFF O

no. item DWF-240LWTP

1. SPECIFICATIONS

In case of moving Washing Machine, please follow the following picture.

NOTES

Fuzzy, Eco, Wool, Blanket, Soak, Duster, Tub Clean,

Gym Shoes, Under Wear, Book Bag, Sports Wear

High

Mid

Low

Small

WASH

SPIN

DRYTEN (OPTION) COVER UNDER WATER TAP ADAPTER

HOSE DRAIN (FOR PUMP) HOSE DRAIN CLAMP (FOR PUMP)

HOSE DRAIN (FOR NON-PUMP)

CONNECTOR INLET(OPTION)

2. STRUCTURE OF THE WASHING MACHINE

STRUCTURE

ACCESSORIES (FULL OPTION)

The parts and features of your washer are illustrated on this page. Become familiar with all parts and features before using your washer.

NOTE

• The drawings in this book may vary from your washer model. They are designed to show the different features of all models covered by this book, Your model may not include all features.

• COLD WATER TAP After using the washer, close the water tap.

• HOT WATER TAP

After using the washer, close the

water tap. In case of the single valve

model, there is no hot water valve.

• LED lamp

• POWER CORD

• LINT FILTER

• ADJUSTABLE LEGS

• CASE DETERGENT AND SOFTENER

• Door knob

• CONTROL PANEL

• HOSE DRAIN

3. DIRECTIONS FOR INSTALLATION AND USE

DIRECTIONS

The openings must not be obstructed by carpeting when the washing machine is installed on a carpeted floor.

⏿⏿

Installation Of the COVER UNDER (Noise Insulation Plate)

⏿⏿

How To Install On An Inclined Place

ᵄ The place where it would be exposed to

direct sunlight.

ᵄ The place nearby a heater or heat

appliance.

ᵄ The place where it would be supposed

to be frozen in winter.

ᵄ The kitchen with coal gas and a damp

place like a bathroom.

NOTES

Install the washer on a horizontal solid floor. If the washer is installed on an unsuitable floor, it could make considerable noise and vibration.

INSTALLING PLACE

Never install in these places

Push the COVER UNDER to the end. This reduces the noise from washing machine.

In the packing box or the tub of the washer, there is the COVER UNDER. Put the COVER UNDER at the bottom of the back.

Check the Horizon Status

Check the position of tub above the center of the washer.

Horizon Setting

After controlling the height by turning the adjustable leg, let the washer put down to the ground.

Keep the machine body more than 25cm apart from the wall surface. It will make easy cleaning the drain filter which is equipped at the back side of it. And if it comes into contract vibration may occur.

* The drawing of the COVER UNDER is variant from your model

25cm

10Cm

CONNECTION

FOR ORDINARY TAP

Connect the inlet hose adapter to the water inlet of the washer by turning it clockwise to be fixed tightly.

• Please check the rubber packing inside the inlet hose adapter.

Pull down the collar of the inlet hose to separate it from the water tap adapter.

Loosen the four screws at the water tap adapter, but don’t loosen the screws until they are separated from the water tap adapter.

Remove the tape, and screw connector B into connector A tightly.

Connect the inlet hose to the water tap adapter by pulling down the collar of the hose end.

Connect the water tap adapter to the water tap and tighten the four screws evenly with pushing up the adapter so that the rubber packing can stick to the water tap tightly.

⏿⏿

How to Connect the Inlet Hose

Be careful not to mistake in supplying between the hot(maximum : 50˚C) and cold water. In using only one water tap or in case of attached one water inlet valve, connect the inlet hose to the cold water inlet valve. Do not over tighten : this could cause damage to couplings.

FOR SCREW-SHAPED TAP

Insert the inlet hose adapter into the water inlet of a washer and turn it to be fixed.

• Check the packing in the inlet

Connect the inlet hose to the water tap by screwing the connector D tightly.

Connect the connector-inlet supplied if necessary.

Inlet Hose

Connector D

Rubber Packing

Connector C

Connector

Inlet



Rubber

Packing

Connector D

Connector C

Hose

TAPE

Connector B

Connector A

CONVENIENCE

CLEANING THE LINT FILTER

• This washer has two Lint Filters in the top TUB in order to filter off lint and fuzz.

CLEANING THE WATER INLET FILTER

• Clean the filter when water leaks from the water inlet.

Return the filter as it was, and insert the filter frame into the slot.

Pull the Filter frame upward.

Turn the lint filter inside out, wash to the lint off with water.

Filter Frame

Lint Filter

1 Pull the power plug out

before cleaning it.

2 Turn off the water supply

to the washer and

separate the inlet hose.

3 Pull the inlet filter out. 4 Remove the dirt from the

inlet filter with a brush.

FEATURE

4. FEATURE AND TECHNICAL EXPLANATION

WASH DRAIN SPIN FILL RINSE 1 DRAIN SPIN FILL RINSE 2 DRAIN •••

MOTOR C.W

SIGNAL C.C.W

TIME(SEC.) 0.3 0.3 0.3 0.3 0.3 0.3 •••••••

35 SEC. (About 29 Times)

Feature of the Washing Machine

1 First applying the Radical Technology in the world ... go beyond washing, sterilize your clothes and deodorize a

bad smell. 2 The first air bubble washing system in the world. 3 Quiet washing through the innovational low-noise design. 4 Improving washing performance by more than 35%, while reducing power consumption by 40%. 5 The laundry detergent dissolves well in water because of the air bubble washing system. 6 The adoption of the water currents to adjust the unbalanced load. 7 One-touch operation system.

Water Current to Adjust the Unbalanced Load

It is a function to prevent eccentricity of the clothes after wash by rotating pulsator C.W and C.C.W for 35 seconds.(But, the SUIT course have no operation of the water currents to adjust the unbalanced load.)

EFFECT

It reduces vibration and noise effectively while spinning.

WATER FLOW

Automatic Water Supply System for Blanket Wash

The water level would be lowered because the blanket absorbs water at the beginning of washing. Therefore, after 2 minutes, the operation is interrupted to check the water level, and then the water is supplied again until the selected water level is reached.

FEATURE

FUNCTIONAL PRINCIPLE

1 The micom can remember the time from the begining of drain to reset point when the pressure switch reaches to

“OFF” point

2 In case of continuous draining, residual drain time is determined by micom.

Draining time as a whole = D + 90

Residual drain time. The time remembered by micom.

FUNCTIONAL PRINCIPLE

Bubble Motor supplies the air from the bottom of outer tub to the inner space of pulsator, the air is dispersed by the rotation of pulsator. Air-bubble is created by the centrifugal force, and rises up.

Draining

Good draining The washer begins spin process after drainage.

condition

Bad draining Draininig time is prolonged.

No draining Program is stopped and gives the alarm.

Drain Time Movement of the Program

Less than

Continue draining

15 minutes

More than

Program stops and gives the alarm with blinked on display lamp.

15 minutes

Functional Principle of Bubble Washing Machine

ACROSS SECTION

Automatic Drainning time Adjustment

This system adjusts the draining time automatically according to the draining condition.

Air bubble

Tub

Outer tub

Pulsator

FEATURE

Contact of safety switch

Lid closing

Lid opening

Contact lever A

Normal (ON)

Position of unbalanced load (OFF)

Automatic Unbalance Adjustment

Circulating-Water Course and Lint Filter

The alarm finished when you close the lid after opening it. Check the unbalance of the wash load and the installation condition.

NOTES

Filter

Tub

Outer tub

Water channel

Pulsator

This system is to prevent abnormal vibration during intermittent spin and spin process.

FUNCTIONAL PRINCIPLE

1. When the lid is closed, the contact lever A of the safety switch is “ON” position.

2. In case that wash loads get uneven during spin, the outer tub hits the safety switch due to the serious vibration, and the spin process is interrupted.

3. In case that P.C.B. ASS’Y gets “OFF” signal from the safety switch, spin process is stopped and rinse process is started automatically.

4. If the safety switch is operated due to the unbalance of the tub, the program is stopped and the alarm is given.

CIRCULATING-WATER

The washing and rinsing effects have been improved by adopting the water system in which water in the tub is circulated in a designed pattern. When the pulsator rotates during the washing or rinsing process, the water below the pulsator fans creates a water currents as shown in figure. The water is then discharged from the upper part of the tub through the water channel. About 40 L/min. water is circulated at the ‘high’ water level, standard wash load and standard water currents.

FEATURE

Much lint may be obtained according to the kind of clothes to be washed and some of the lint may also stick to the clothes. To minimize this possibility a lint filter is provided on the upper part of the tub to filter the wash water as it is discharged from the water channel. It is good to use the lint filter during washing.

HOW TO REPLACE LINT FILTER

1 Pull the filter frame upward. 2 Turn the lint filter inside out, and wash the lint off with water. 3 Return the filter as it was, and fix the filter frame to the slot.

When the START/HOLD button is pressed, the residual time (min.) is displayed on the time indicator, and it will be counted down according to process. When operation is finished, the TIME INDICATOR will light up .

STRUCTURE

FUNCTIONAL PRINCIPLE

1 When the DRAIN MOTOR connected to the power source, the DRAIN MOTOR rotates with 900 r.p.m and revolves

the pulley by gear assembly for reducing. 2 When the pulley is rotated, the pulley winds the wire to open the drain valve. 3 Therefore, rotation of pulley changed to the linear moving of wire. 4 The wire pulls the brake lever of Gear Mechanism Ass’y within 5 seconds. 5 After the wire pulled, gear assembly is separated from motor and condition of pulling is held by operation of the

lever. 6 When the power is turned off, the drain valve is closed because the wire returns to original position.

Pull Loosen

Pulley

Lever

Inductive ring Magnet

Coil of motor Magnet of motor

Lint Filter

Residual Time Display

Drain Motor

Filter

FEATURE

The proper water currents is made by the rotation of pulsator at a low speed to prevent the damage to the small sized clothes.

Planetary gear

Sun gear

Internal gear

Pulsator

1 revolution

5 revolutions

Gear pulley

V-belt

Gear unit as

Motor

Motor 1800 r.p.m (60Hz) 1500 r.p.m (50Hz)

Gear Unit as

Directly

V-Belt

Tub

710-740r.p.m(60Hz) 640-675r.p.m(50Hz)

Pulsator

125-140r.p.m(60Hz) 130-150r.p.m(50Hz)

Spinner Pulley

710-740r.p.m(60Hz) 640-675r.p.m(50Hz)

Gear Mechanism Ass’y

5. DIRECTIONS FOR DISASSEMBLY AND ADJUSTMENT

DIRECTIONS

Gear Mechanism Ass’y Replacement

BEFORE ATTEMPTING TO SERVICE OR ADJUST ANY PART OF THE WASHING MACHINE, DISCONNECT

THE POWER CORD FROM THE ELECTRIC OUTLET.

Warning

1 Remove CASE DETERGENT and bolt. 2 Separate PANEL F by pushing PANEL F to the left.

4 Unscrew 4 bolts and separates COVER TUB from

TUB ass’y.

3 Remove 4 bolts and separate PLATE T from washing

machine.

5 Remove CAP PULSATOR form PULSATOR using

screw driver.

GEAR MECHANISM ASS’Y REPLACEMENT

+ 29 hidden pages