Daewoo DWF-805, DWF-806, DWF-753, DWF-752, DWF-756 User Manual

Service Manual

Auto Washer

Model : DWF-750/752/800/802

753/755/803/805
756/758/806/808

DAEWOO ELECTRONICS CO., LTD.

✔

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).

WASHING MACHINE

CCoonntteennttss

1. SPECIFICA TIONS................................................................................................................... 2

2. STRUCTURE OF THE WASHING MACHINE....................................................................... 3

3. FUNCTIONS OF THE CONTROL P ANEL............................................................................. 4

4. DIRECTIONS FOR INST ALLATION AND USE

LOCATION OF WASHER ............................................................................................................... 6

DRAIN SYSTEM.............................................................................................................................. 6

HOW TO CONNECT THE INLET HOSE........................................................................................ 7

HOW TO CLEAN THE FILTER....................................................................................................... 8

5. FEA TURE AND TECHNICAL EXPLANATION

FEATURE OF THE WASHING MACHINE ..................................................................................... 9

WATER CURRENT TO ADJUST THE UNBALANCED LOAD...................................................... 9

AUTOMATIC WATER SUPPLY SYSTEM ..................................................................................... 9

AUTOMATIC DRAINING TIME ADJUSTMENT ........................................................................... 10

SOFTENER DISPENSER............................................................................................................. 11

AUTOMATIC UNBALANCE ADJUSTMENT ................................................................................ 12

CIRCULA TING-WATER................................................................................................................ 12

LINT FILTER.................................................................................................................................. 13

RESIDUAL TIME DISPLAY.......................................................................................................... .13

DRAIN MOTOR.............................................................................................................................13

GEAR MECHANISM ASS’Y ......................................................................................................... 14

PRINCIPLE OF BUBBLE GENERATOR...................................................................................... 14

FUNCTIONAL PRINCIPLE OF BUBBLE WASHING MACHINE................................................. 15

6. DIRECTIONS FOR DISASSEMBLY AND ADJUSTMENT

GEAR MECHANISM ASS’Y REPLACEMENT............................................................................. 16

MOTOR SYNCHRONOUS AND VALVE REPLACEMENT.......................................................... 18

BRAKE ADJUSTMENT............................................................................................................... ..18

7. THE REP AIR METHOD OF GEAR MECHANISM FOR CLUTCH SPRING PROBLEM

THE STRUCTURE OF GEAR MECHANISM............................................................................... 19

HOW TO CHECK THE CLUTCH SPRING PROBLEM................................................................ 20

THE PROCESS OF DISASSEMBLE............................................................................................ 21

THE PROCESS OF ASSEMBLE.................................................................................................. 23

8. TROUBLE SHOOTING GUIDE

CONCERNING WATER SUPPLY..................................................................................................25

CONCERNING WASHING........................................................................................................... 26

CONCERNING DRAINING........................................................................................................... 27

CONCERNING SPINNING........................................................................................................... 28

CONCERNING OPERA TION....................................................................................................... 29

9. PRESENT ATION OF THE P.C.B ASS’Y .............................................................................. 30

APPENDIX

WIRING DIAGRAM....................................................................................................................... 31

PARTS DIAGRAM & PARTS LIST................................................................................................ 35

CIRCUIT DIAGRAM...................................................................................................................... 44

1. SPECIFICATIONS

2

SPECIFICATIONS

NO. ITEM

1 POWER SOURCE AVAILABLE IN ALL LOCAL AC VOLT AGE

2

POWER

50Hz 320W

CONSUMPTION

60Hz 300W(110~127V) / 340W(220V)

3

MACHINE NET
WEIGHT

GROSS
4 DIMENSION (WXHXD)
5

MATERIAL OF INTERNAL TUB

PLASTIC ST AINLESS STEEL

6

WATER LEVEL SELECTOR

HIGH(55l), MID(45l), LOW(31l)

7

OPERATING W ATER PRESSURE

0.3kgf/cm2~8kgf/cm

2

(2.94 N/cm2~78.4N/cm2)

8

MAXIMUM MASS OF TEXTILE

5.5kg 6.0kg

REVOLUTION

WASH 125~145(50Hz), 130~150(60Hz)

9 SPIN 710~725(50Hz), 760~785(60Hz)

PER MINUTE

SUIT 50(50Hz), 60(60Hz)

10

WATER CONSUMPTION

APPROX. 130l/CYCLE

11

WATER LEVEL CONTROL

ELECTRONICAL SENSOR
12 ANTI NOISE PLATE OPTION
13

GEAR MECHANISM ASS’Y

SPUR GEAR
14 LINT FILTER O
15 SOFTENER INLET O
16 ALARM SIGNAL O
17 AUTO. WATER SUPPLY O
18

FUNCTION FOR BUBBLE

OPTION

19

AUTO RE-FEED WATER

O

20 AUTO POWER OFF O

DWF-750/753/756 DWF-752/755/758 DWF-800/803/806 DWF-802/805/808

525X858X535 525X948X535 525X858X535 525X948X535

28kg/28.5kg(pump)

31.5kg/32kg(pump)

28.5kg/29kg(pump)
32kg/32.5kg(pump)

2. STRUCTURE OF THE WASHING MACHINE

3

STRUCTURE

• GROUND WIRE
In case of 3-wire

power cord, ground

wire will not be

provided

• POWER CORD

• DRAIN HOSE

• LINT FILTER

• COLD WATER TAP

After using the washer,

close the water tap

• DETERGENT CASE

• ADJUSTABLE LEG

• SOFTENER INLET

• BLEACH INLET

• CONTROL PANEL

• POWER SWITCH

• PULSATOR

• HOT WATER TAP

After using the washer, close the water tap.
In case of the single valve model,
there is no hot water valve.

DRYTEN(OPTION) HOSE ADAPTER UNDER COVER(OPTION)

INLET HOSE(OPTION)

HOSE CONNECTOR(OPTION)

CONNECTOR INLET(OPTION)

Accessories

UP

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 drawing 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.

• Page references are included next to same features.
Refer to those pages for more information about the features.

DRAIN HOSE

In case of screw shaped inlet hoses
water tap adapters will not be provided.

NON PUMP MODEL PUMP MODEL

3. FUNCTIONS OF THE CONTROL PANEL

4

CONTROL PANEL

• Press this switch to turn the power on or off.

• It can be used to choose water temperature to be supplied.

• As the button is pressed, water temperature will be repeated.
COLD → COLD+HOT → HOT

• In case of the single valve model, there is no wash temperature selector function.

• It can be used to adjust amount of water according to the size of the load to be washed.

• As the button is pressed, water level is selected by MID → HIGH → LOW

• It can be used to pre-engage time for wash.

• It is the button for the partial process or the combination of each process (wash, rinse,
spin)

• If you want to change wash time, rinse times, spin time, you must press this button after
selecting each process by the process button. Also, this button can be used to spin only.

• It can be used to select the full-automatic program.

• As the button is pressed, program will be selected by following order :
FUZZY → FUZZY+SOAK → HEAVY → HEAVY+SOAK → SPEEDY → SUIT(WOOL)

• Operation and temporary stop is repeated as it is pressed.

• When you want to change program in operating;
press the “ST ART/HOLD” button → Select the program that you want to change → press
the “ST ART/HOLD” button again.

Control panel has micom sensor.
As the buttons are pressed, the lamps indicating the selection of your desired washing program will light up.

1. DWF-750/752/800/802

2. DWF-753/755/803/805

RES.

CONTROL

PROGRAM

HOURS

RES.

CONTROL

PROGRAM

5

PROCEDURE

• Press this switch to turn the power on or off.

• It can be used to choose water temperature to be supplied.

• As the button is pressed, water temperature will be repeated.
COLD → COLD+HOT → HOT

• In case of the single valve model, there is no wash temperature selector function.

• It can be used to adjust amount of water according to the size of the load to be washed.

• As the button is pressed, water level is selected by MID → HIGH → LOW

• It can be used to cancel the full-automatic program.

• When the button is pressed, the display will light down.
If you want to wash, rinse or spin, you can press one of the buttons.

• It can be used to pre-engage time for wash.

• It can be used to select the full-automatic program.

• As the button is pressed, program will be selected by following order :
FUZZY → HEAVY → SUIT(WOOL) → BLANKET → SPEEDY

• It can be used to adjust washing time.

• As the button is pressed, it will repeat.
6 MIN → 9 → 12 → 15 → 18 → SOAK

• It can be used to adjust rinse times.

• As the button is pressed, it will repeat.

• 1 TIME → 2 → 3 → 4 → 5

• It can be used to adjust spin time.

• As the button is pressed, it will repeat. 1MIN → 3 → 5 → 7 → 9

• Operation and temporary stop is repeated as they are pressed.

• When you want to change program in operating;
press the “ST ART/HOLD” button → Select the program that you
want to change → press the “START/HOLD” button again.

3. DWF-756/758/806/808

6

4. DIRECTIONS FOR INSTALLATION AND USE

DIRECTIONS

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

§§

è

Location Of Washer

Check location where washer will be installed. Make sure you have everything necessary for correct installation.
Proper installation is your responsibility.

• Do not place or store your washer below 0˚C(32˚F) to avoid any damage from freezing.

• Install the washer on the horizontal sold foor.

NOTES

If the washer is installed on an unsuitable floor, it could make consider­able noise, vibrate and cause a malfunction.
If washer is not level, adjust the front leg(A) up or down for horizontal set­ting.

• Earthed electrical outlet(B) is required with 20cm of bottom back of
washer cabinet.

• Hot and cold water faucets (C) must be within 1M of the upper back of
the washer cabinet and provide water pressure 0.3kgf/cm

2

-

8kgf/cm

2

(2.94N/cm2-78.4N/cm2).

§§

è

Drain System

Never forget to install drain hose before operating your washer.
The packing box is opened, there are a drain hose.

• Conect the drain hose to the drain outlet at the back side of the washer.

Non-Pump Model Pump Model

1 In case that it goes over a door sill.

Don’t let the height of the drain
hose exceed 20cm from the bottom
of washer.

2 In case of extending the drain hose.

Don’t let the total length exceed 3m.

3 Be careful that the end of the drain

hose is not immersed in water.

Non-Pump Model

• Top of tub must be at
least 86cm (34inches)
high and no higher than
130cm from bottom of
washer (A)

• Needs a 3cm minimum diameter standpipe with minimum
carry away capacity of 30liters per minute.

• Top of tub must be at
least 86cm(34inches)
high and no higher than
130cm from bottom of
washer (B)

Pump Model

Laundry tub drain system Standpipe drain system

C

UP DOWN

B

A

Drain hose

Drain Outlet

Drain hose

20Cm

3m

A

B

7

CONNECTION

FOR ORDINARY TAP

6

Connect the inlet hose adapter
of the hose 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 of
the hose.

1

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

2

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

4

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

5

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

3

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

§§

è

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 T AP

3

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

• Assert the packing in the inlet

1

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

Inlet Hose

Connector D

Rubber
Packing

Connector C

TAPE

Connector B

Connector A

¡ collar

2

Connect the connec­tor-inlet supplied if
necessary.

Connector

Inlet

Rubber
Packing

Connector D

Connector C

Hose

8

CONVENIENCE

§§

è

How To Clean The Filter

4

Remove the dirt
from the inlet filter
with a brush.

1

Pull the
power plug
out before
cleaning it.

2

Turn of f the
water supply
to the washer
and separate
the inlet hose.

3

Pull the
inlet filter out.

CLEANING THE LINT FILTER

CLEANING THE WATER INLET FILTER

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

CLEANING THE DRAIN FILTER

• In case of “U” shaped drain hose, this filter’s equipped at the back side of washer.

• This drain filter is to screen the foreign stuffs such as threads, coins, pins, buttons etc ..

• If the drain filter is not cleaned at proper time (every 10 times of use), drain problem could be caused.

3

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

1

Pull the Filter frame
upward.

2

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

1

Put down the
remained water in the
hose. And put a container
under the filter to collect
water.

2

Turn the cap counter­clockwise.

3

Pull out the filter assembly off
the case of the main body.

6

Turn the cap clockwise tightly.

4

Clean the drain filter
removing the foreign
stuffs.

5

Put in the filter along the
guiding prominence of the
case. Please note the left
position of the filter adjusting
the groove to the guide rib.

FILTER

CONTAINER

CAP

SLIT

CASE

FILTER

CAP

CAP

FILTER

CAP

FILTER

CASE

GUIDE
RIB

SLIT

CAP

Filter Frame

Lint Filter

9

5. FEATURE AND TECHNICAL EXPLANATION

EXPLANATION

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

MOTOR C.W
SINGAL C.C.W

TIME(SEC.) 0.4 0.4 0.4 0.4 0.4 0.4 •••••••

40 SEC. (About 25 Times)

* When the water level is “HIGH”

Feature of the Washing Machine

1 The first air bubble washing system in the world.
2 Quiet washing through the innovational low-noise design.
3 The wash effectiveness is much more enhanced because of the air bubble washing system.
4 The laundry detergent dissolves well in water because of the air bubble washing system.
5 The adoption of the water currents to adjust the unbalanced load.
6 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 unbalnced load.)

EFFECT

It reduces vibration and noise effectively while spinning.

WATER FLOW

Automatic Water Supply System

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

10

EXPLANATION

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 + 40

Residual drain time.
The time remembered by micom.

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

10 minutes

More than

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

10 minutes

Automatic Drainning time Adjustment

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

11

EXPLANATION

This is the device to dispense the softener automatically by centrifugal force.
This is installed inside the auto-balancer.

FUNCTIONAL PRINCIPLE

1 Softener stays in room (A) when poured into softener inlet.
2 Softener moves from (A) to (B) by centrifugal force during intermittent spin process.
3 Softener flows from (B) to (C) during rinse process next to intermittent spin.
4 Softener moves from (C) to (D) by centrigfugal force during second intermittent spin.

After spin process is finished, the softener is added into the tub through softener outlet.

FLOW OF THE SOFTENER

FLOW OF THE SOFTENER INSIDE OF THE BALANCER

HOW TO CHECK MOVEMENT

Pour a reasonable amount of “MILK” into softener dis­penser and operate the washer with no load. In final
rinse cycle, make sure that the milk is added into the
tub through softener outlet.

A

B

C

D

Wash Intermittent Hold Intermittent Rinse Spin

Spin Spin

Normal Centrifugal Flow in Centrifugal Flow in

force force

Program (A) (B) (C) (D)

Room inside
the balancer

Centrifugal force

Flowing by weight

Balancer

Softener

outlet

Softener inlet

Softener Dispenser

Softener moves into the next room when r.p.m of the tub is more than 100 r.p.m.

NOTES

A

B

C D

12

EXPLANATION

Automatic Unbalance Adjustment

Circulating-Water

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 safety switch contact 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 are stopped and rinse process is

started automatically by P.C.B. ASS’Y.

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 vanes 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.

13

EXPLANATION

Much lint may be obtained according to the kind of
clothes to be washed and some of the lint may also
sticks 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.

Bleach Inlet

Filter

Pulsator

Pull
Loosen

Pulley
Lever
Inductive ring

Magnet

Coil of motor
Magnet of motor

Lint Filter

Residual Time Display

Drain Motor

Bleach

Inlet

Filter

Pulsator

14

EXPLANATION

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

STRUCTURE

Pulsator shaft

One way clutch
bearing

Brake lever

Spin shaft

Gear unit as

Clutch spring
Clutch boss

Gear pulley

Planetary gear

Sun gear

Internal gear

Pulsator

1 revolution

5 revolutions

Gear pulley

V-belt

Gear unit as

Motor

Motor

1490 r.p.m

(50Hz)

Gear Unit as

Directly

Tub

720 r.p.m

Pulsator

138 r.p.m

Gear Pulley

720 r.p.m

Bobbin & coil

Magnet

Armature

Bellows

Air out hole

Protector A

Protector B

Air in hole

Air

Air

Trans core

Gear Mechanism Ass’y

Principle of Bubble Generator