Daewoo DWF-79M Service manual

Daewoo DWF-79M is a fully automatic washing machine with six wash courses, including fuzzy, blanket, economy, baby care, sports wear, and delicate. It features a helical gear mechanism, tornado pulsator, electronic water level control, and a lint filter. The machine also has a softener inlet, bleach inlet, and a time delay function. Additionally, it's equipped with an alarm signal, residual time display, automatic water supply, bubble function, and automatic re-feed water.

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S/M No. :

Service Manual

Auto Washer

Model: DWF-178L

DWF-178M/178W

DWF-179M/179W

✔

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).

DAEWOO ELECTRONICS CORP.

http : //svc.dwe.co.kr

Oct. 2011

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

1. SPECIFICATIONS................................................................................................................... 2

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

3. DIRECTIONS FOR INSTALLATION AND USE .................................................................... 4

INSTALLATION OF THE COVER UNDER .................................................................................... 4

HOW TO INSTALL ON AN INCLINED PLACE .............................................................................. 4

HOW TO CONNECT THE INLET HOSE ....................................................................................... 5

HOW TO CLEAN THE FILTER....................................................................................................... 6

4. FEATURE AND TECHNICAL EXPLANATION ..................................................................... 7

FEATURE OF THE WASHING MACHINE..................................................................................... 7

WATER CURRENT TO ADJUST THE UNBALANCED LOAD...................................................... 7

FUNCTION FOR SOAK WASH ...................................................................................................... 7

AUTOMATIC WATER SUPPLY SYSTEM FOR BLANKET WASH............................................... 7

FUNCTION PRINCIPLE OF BUBBLE WASHING MACHINE ....................................................... 8

AUTOMATIC DRAINING TIME ADJUSTMENT............................................................................. 8

AUTOMATIC UNBALANCE ADJUSTMENT .................................................................................. 9

CIRCULATING-WATER COURSE AND LINT FILTER ................................................................. 9

LINT FILTER ................................................................................................................................. 10

RESIDUAL TIME DISPLAY .......................................................................................................... 10

DRAIN MOTOR ............................................................................................................................. 10

GEAR MECHANISM ASS’Y ......................................................................................................... 11

5. DIRECTIONS FOR DISASSEMBLY AND ADJUSTMENT ................................................. 12

GEAR MECHANISM ASS’Y REPLACEMENT............................................................................. 12

DRAIN MOTOR AND VALVE REPLACEMENT........................................................................... 14

6. THE REPAIR METHOD OF GEAR MECHANISM FOR CLUTCH

SPRING PROBLEM ...........................................................................................................................

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

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

THE PROCESS OF DISASSEMBLE............................................................................................ 17

THE PROCESS OF ASSEMBLE.................................................................................................. 19

REPLACE THE CASE FILTER ASSY .......................................................................................... 21

7. TROUBLE SHOOTING GUIDE ............................................................................................ 22

CONCERNING WATER SUPPLY ................................................................................................ 22

CONCERNING WASHING ........................................................................................................... 23

CONCERNING DRAINING ........................................................................................................... 24

CONCERNING SPINING.............................................................................................................. 25

CONCERNING OPERATING ....................................................................................................... 26

8. PRESENTATION OF THE P.C.B ASS’Y ............................................................................. 27

APPENDIX

WIRING DIAGRAM ....................................................................................................................... 28

PARTS DIAGRAM......................................................................................................................... 31

PARTS LIST .................................................................................................................................. 34

CIRCUIT DIAGRAM ...................................................................................................................... 37

1. SPECIFICATIONS

No.

ITEM

1 POWER SOURCE

2 POWER 110V/60Hz

CONSUMPTION 220V/50Hz,60Hz

3 MACHINE WEIGHT

4 DIMENSION (WxHxD)

5 WASHING COURSE

6 WATER CONSUMPTION

7 WATER LEVEL

SELECTOR

HIGH

MED

LOW

SMALL

8 OPERATING WATER PRESSURE

9 REVOLUTION

PER MINUTE

WASH

SPIN

10 PULSATOR

11 WATER LEVEL CONTROL

12 GEAR MECHANISM ASS'Y

13 LINT FILTER

14 SOFTENER INLET

15 FUNCTION FOR TIME DELAY

(RESERVATION)

16 ALARM SIGNAL

17 RESIDUAL TIME DISPLAY

18 AUTOMATIC WATER SUPPLY

19 FUNCTION FOR BUBBLE

20 AUTOMATIC RE-FEED WATER

21 AUTOMATIC POWER OFF

22 DOOR TYPE (TRANSPARENT)

DWF-178L DWF-178M/178W DWF-179M/179W

A.C 110V/60Hz , A.C 220V/50Hz , A.C 220V/60Hz

430W

530W

42kg(Non-Pump) / 43kg(Pump)

598 x 956 x 643 mm

FULL AUTOMATIC 6 COURSES

(FUZZY, BLANKET, ECONOMY, BABY CARE, SPORTS WEAR, DELICATE)

185ℓ

91ℓ

82ℓ

69ℓ

56ℓ

0.03MPa ~ 0.8MPa (0.3kgf/cm

~ 8kgf/cm

= 2.94N/cm

~ 78.4N/cm

)

130~150 rpm(60Hz) / 125~140 rpm(50Hz)

710~740 rpm(60Hz) / 640~675 rpm(50Hz)

TORNADO PULSATOR with 4 WINGS (ø 376mm)

ELECTRONIC SENSING

HELICAL GEAR

O (OPTION)

GLASS DOOR

( TRANSPARENT )

O (OPTION)

PLASTIC DOOR

( 178M/179M : OPAQUE )

PLASTIC DOOR

( 178W/179W : TRANSPARENT )

2 SPECIFICATIONS

2. STRUCTURE OF THE WASHING MACHINE

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.

• HOT WATER TAP

After using the washer, close the water tap.

In case of the single valve model, there is no hot water valve.

• SOFTENER INLET

• BLEACH INLET

• CONTROL PANEL

• POWER SWITCH

• COLD WATER TAP

After using the washer, close the water tap.

• DETERGENT CASE

• LINT FILTER

• GROUND WIRE

In case of 3-wire power cord, ground wire will not be provided.

• POWER CORD

• PULSATOR

• ADJUSTABLE LEG

Accessories

COVER UNDER [OPTION] WATER TAP ADAPTER INLET HOSE

3611402715

HOSE DRAIN [FOR PUMP] HOSE DRAIN CLAMP HOSE DRAIN[FOR NONPUMP] CONNECTOR INLET [OPTION]

3613218800 3613226600

STRUCTURE 3

3. DIRECTIONS FOR INSTALLATION AND USE

INSTALLING PLACE

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

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.

Never install in these places

● The place where it would be exposed to direct sunlight.

● The place nearby a heater or heat appliance.

● The place where it would be supposed to be frozen in winter.

● The kitchen with coal gas and a damp place like a bathroom.

■

Installation Of the COVER UNDER (Noise Insulation Plate)

1 The packing box opened, there is a noise insulation plate.

Put the noise insulation plate at the bottom of the back.

2 Push the noise insulation plate into the end, which decrease the noise made by this washer.

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

■

How To Install On An Inclined Place

1 Horizon

Setting

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

2 Check the Horizon

Status

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

NOTES

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

4 DIRECTIONS FOR INSTALLATION AND USE

■

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 ORDINARY TAP

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.

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

TAPE

4 Remove the tape, and screw connector

B into connector A tightly.

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

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

Connector A

Connector B

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

FOR SCREW-SHAPED TAP

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

2 Connect the connector-inlet supplied if necessary.

Connector D

Rubber

Packing

Connector

Inlet

Connector D

Rubber

Packing

Hose

Connector C

Inlet Hose Connector C

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

HOT

COLD

TEMP SH

DETERGENT

HIGH REMA

MED IUM

SMAL

LOW

LEVEL

RES

RES.

MIN.

FUZZY BLANKET

ECONOMY

SUIT

COU

RSE

SOAK WASH

PROCESS

RINSE

SPIN

CONTROL

ONL Y SPIN

SPRAY

RINSE

ST ART

HOLD

POWER

DWF-1

74W

• Assert the packing in the inlet.

DIRECTIONS FOR INSTALLATION AND USE 5

■

HOW TO CLEAN THE FILTER

CLEANING THE LINT FILTER

1 Pull the Filter frame upward.

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

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

Lint Filter Filter Frame

CLEANING THE WATER INLET FILTER

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

Pull the power plug out before cleaning it.

Turn off the water supply to the washer and sperate the inlet hose.

Pull the inlet filter out.

Remove the dirt from the inlet filter with a brush.

CLEANING THE DRAIN FILTER

• In case “U” shape 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.

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

2 Turn the cap counter clockwise.

CAP

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

SLIT

FILTER

CASE

CAP

FILTER

CONTAINER

4 Clean the drain filter removing the foreign stuffs.

FILTER

CAP

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.

CASE

FILTER

GUIDE

RIB

CAP

SLIT

6 Turn the cap clockwise tightly.

CAP

6 DIRECTIONS FOR INSTALLATION AND USE

4. FEATURE AND TECHNICAL EXPLANATION

FEATURE OF THE WASHING MACHINE

1 The first applying Radical Technology in the world....go beyond washing, sterilize your clothes and deodorize a bad smell.(optional function)

The first air bubble washing system in the world.

Quiet washing through the innovational low-noise design.

The wash effectiveness is much more enhanced because of the air bubble washing system.

The laundry detergent dissolves well in water because of the air bubble washing system.

The adoption of the water currents to adjust the unbalanced load.

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 DELICATE course have no operation of the water currents to adjust the unbalnced load.)

EFFECT

It reduces vibration and noise effectively while spinning.

WATER FLOW

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

MOTOR C.W

SINGAL C.C.W

TIME(SEC.) 0.3

0.3

35 SEC. (About 29 Times)

• • • • • • •

FUNCTION FOR SOAK WASH(OPTION)

DISPLAY THE RESIDUAL TIME

When the SOAK WASH is selected, the total wash time increases because 60 minutes for soak process are added to the time of main process.

PROGRESS

SOAK PROCESS MAIN PROCESS

FILL WASH STOP WASH STOP

• 30” 2’ 30” 2’

60 Minute

NOTES ‘ ’ mark indicates the operation of the water currents to adjust the unbalanced load.

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 AND TECHNICAL EXPLANATION 7

FUNCTIONAL PRINCIPLE OF BUBBLE WASHING MACHINE

ACROSS SECTION

Air bubble

Tub

Outer tub

Pulsator

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.

AUTOMATIC DRAINNING TIME ADJUSTMENT

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

Draining condition

Good draining

Bad draining

No draining

The washer begins spin process after drainage.

Draining time is prolonged.

Program is stopped and gives the alarm.

FUNCTIONAL PRINCIPLE

1 The micom can remember the time(D) from the begining of drain to reset point when the pressure switch reaches to “OFF” point

Movement of the Program Drain Time

Less than

15 minutes

More than

15 minutes

Continue draining.

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

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.

8 FEATURE AND TECHNICAL EXPLANATION

AUTOMATIC UNBALANCE ADJUSTMENT

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.

Position of unbalanced load (OFF)

Contact of safety switch

Lid closing

Lid opening

Contact lever A

Normal (ON)

NOTES

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

CIRCULATING-WATER COURSE AND LINT FILTER

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.

Filter

Water channel

Pulsator

Tub

Outer tub

FEATURE AND TECHNICAL EXPLANATION 9

LINT FILTER

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.

Inlet

HOW TO REPLACE LINT FILTER

Pull the filter frame upward.

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

Return the filter as it was, and fix the filter frame to the slot.

RESIDUAL TIME DISPLAY

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 .

DRAIN MOTOR

STRUCTURE

Pull

Loosen

Pulley

Lever

Inductive ring

Magnet

Coil of motor

Magnet of motor

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.

10 FEATURE AND TECHNICAL EXPLANATION

GEAR MECHANISM ASS’Y

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

Gear unit as

Motor

V-belt

Pulsator

1 revolution

5 revolutions

Gear pulley

Motor

1800 r.p.m (60Hz)

1500 r.p.m (50Hz)

V.BELT

Spinner Pulley

710-740r.p.m(60Hz)

640-675r.p.m(50Hz)

Gear Unit as

Pulsator

130-150r.p.m(60Hz)

125-140r.p.m(50Hz)

Directly

Tub

710-740r.p.m(60Hz)

640-675r.p.m(50Hz)

FEATURE AND TECHNICAL EXPLANATION 11

5. DIRECTIONS FOR DISASSEMBLY AND ADJUSTMENT

Warning

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

THE POWER CORD FROM THE ELECTRIC OUTLET.

GEAR MECHANISM ASS’Y REPLACEMENT

GEAR MECHANISM ASSY REPLACEMENT

Raise the top plate on the outer cabinet.

Loosen four screws mounting outer tub cover and remove outer tub cover from the tub ass’y.

3 Remove the cap pulsator from the pulsator ass'y by using screw driver.

4 Loosen the pulsator mounting screw and remove the pulsator.

5 Remove the special nut by using “T” type box wrentch.

6 Remove the special washer.

12 DIRECTIONS FOR DISASSEMBLY AND ADJUSTMENT

7 Remove the tub i assy.

Lay the top of the washer on the floor.

Remove four special bolts of gear protect by using a

0 box wrentch and remove gear protect.

Remove the V-belt.

q Remove four special bolt of gear mechanism assy by using a box wrentch.

w Pull out the gear mechanism ass’y.

NOTES

To assemble the gear mechanism ass’y, reverse the disassembly procedure.

DIRECTIONS FOR DISASSEMBLY AND ADJUSTMENT 13

DRAIN MOTOR AND VALVE REPLACEMENT (NON PUMP MODEL)

Lay the top of the washer on the floor.

Loosen two special screw of drain motor.

Take out the wire of drain motor from the bracket.

Separate the drain motor from the base.

5 Turn the valve by using screw driver as shown in picture.

6 Remove the valve lid from the valve drain ass’y.

14 DIRECTIONS FOR DISASSEMBLY AND ADJUSTMENT

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

THE STRUCTURE OF GEAR MECHANISM

# TOOL FOR REPLACING THE CLUTCH BOSS ASSEMBLE #

Tool name Specification

Figure 1

Fixing jig

Ratchet handle

Socket and extension bar

Some cotton yarn socket : 10mm, 17mm

Q’ty

1 per each some

THE REPAIR METHOD 15

HOW TO CHECK THE CLUTCH SPRING PROBLEM

PROBLEM

1) THE LAUNDARY IS IN THE SPIN TUB UNEVENLY WHEN JUST STARTING SPIN PROCESS.

2) THEREFORE, IT CAUSE THE SERIOUS NOISE AND VIBRATION WHEN WASHING AND SPINNING

PROCESS OR SUPPLING WATER IRREGULARY WHEN SPINNING PROCESS

AND CAUSE SHORT OF SPIN PERFORMANCE.

CHECKING METHOD

IN THIS CASE, YOU MUST EMPTY THE SPIN TUB FIRST.

1) TO CHECK THE REVOLUTION OF SPIN TUB. IF THE SPIN TUB DOES NOT REVOLVE AND ONLY

THE PULSATOR IS TURNING, THAT IS CLUTCH SPRING DEFECT.

2) TO CHECK THE SPIN SPEED(RPM) BETWEEN SPIN TUB AND PULSATOR.

IF YOU FIND THE DIFFERENT SPIN SPEED BETWEEN SPIN TUB AND PUSATOR, THIS IS ALSO

CLUTCH SPRING DEFECT.

IN THIS CASE, WE ARE GOING TO SUPPLY THE CLUTCH BOSS ASSEMBLY INSTEAD OF GEAR

MECHANISM ASSEMBLEY. PLEASE REFER TO FOLLOWING FIG.

THE CLUTCH BOSS ASSEMBLY

NO.

PARTS NAME

CLUTCH SPRING

CLUTCH BOSS

GREASE

SPECIFICATION CODE Q’TY

1.5*1.5

PP beacon#325 3g

PACKING PACKING THE CLUTCH BOSS ASS’Y

METHOD BY USING VINYL PACK

3615110000 1

3619301300 1

CLUTCH BOSS ASS’Y PART CORD : 3619301400

16 THE REPAIR METHOD

No.

THE PROCESS OF DISASSEMBLE

Process

Remove the protector

1

Disassemble 1

Notice

Use wrench or driver.

- ratchet handle

- extension bar

- socket : 10mm

2

Release screws marked 4-point

Remove the v-belt

Loosen the fastening nut Use fixing jig for pulley as to see fig 1.

and 17mm-socket for nut.

3

Disassemble the spring washer

Take out plain washer if it has.

4

THE REPAIR METHOD 17

No.

5

Process

Disassemble the pulley

Disassemble 2

Notice

6

Disassemble the clutch boss assembly

Catch the boss and pull upward with spiral rotate in the clockwise direction.

Separate coupling from clutch boss ass’y

7

8

18 THE REPAIR METHOD

Cleaning Clean the drum plate, coupling surface and contact face between drum plate and coupling.

It is necessary to keep cotton piece goods being dry and clean.

No.

THE PROCESS OF ASSEMBLE

Process

Assemble the coupling

1

Assemble 1

Notice

Check the uneven face of coupling is assembled upward.

2

Assemble the new clutch boss ass’y

- Push in the clutch boss ass’y with rotating on the clockwise direction.

- After assembling, rotate on the clockwise more 2~3 teeth and pull out the pulley shaft upward.

Assemble the pulley

3

4

Assemble the spring washer If there was plain washer, you have to assemble plain washer the first and then assemble spring washer.

THE REPAIR METHOD 19

No.

5

Process

Assemble the fastening nut

Assemble 2

Notice

- Use fixing jig and 17mm socket wrench as if disassembling, as fastening torque about 100~200kgf-cm.

- Check the end-play, up and downward and check the binding force, too much or not on bi-direct of rotation.

Assemble the Belt

6

Assemble the protector

7

Synchronous

Motor

8

Clutch Tip

3.5~4.5

keep distance

2~3mm

Drain

Valve

Final checking Finally, check the distance between brake lever and control bolt(2~3mm).

Also, check the interferance depth both clutch tip and clutch boss(3.5~4.5mm).

20 THE REPAIR METHOD

REPLACE THE CASE FILTER ASS’Y

1 Separate the back cover from washing machine.

2 Remove two screws.

3 Remove three screws.

4 Turn the case filter ass’y and separate it from the drain motor.

5 Separate the drain hose i from the case filter ass’y.

6 Separate the cavitation hose from the case filter ass’y.

7 Assemble the case filter ass’y that purchased.

8 Tie up three screws.

9 Tie up two screws.

0 Assemble the hose drain I to the case filter with bond & clamp.

q Assemble the cavitation hose to the case filter with bond & clamp.

w Assemble the back cover to the washing machine.

THE REPAIR METHOD 21

7. TROUBLE SHOOTING GUIDE

NOTES

1. When replace the P.C.B. ASS’Y do not scratch the surface of the P.C.B. ASS’Y.

2. Disconnect the power cord from the electric outlet.

CONCERNING WATER SUPPLY

PROBLEM CHECK POINT CAUSE SOLUTION

WATER IS

NOT SUPPLIED.

Do you open the water tap?

YES

Is the filter of the water inlet valve clogged with dirt?

Is the water pressure sufficient?

(0.3~8 kgf/cm 2 )

YES

Open the water tap.

Clean the filter.

YES

NO Increase the water pressure.

NOTE : Open the water tap fully and measure the flow rate.

Flow rate( ℓ /min.)

Water pressure

(kgf/cm 2 )

11.5

0.3

15.0

0.4

18.0

0.5

20.3

0.6

24.1

0.8

27.4

1.0

From the upper results, you know that the flow rate more than

11.5

ℓ /min. is essential for water supply.

Does the water inlet valve make operating sound?

Water inlet valve is defective.

YES

Is the connector or the terminal connected properly?

YES

Is the output voltage of the P.C.B normal?

Improper connection of the connector or the terminal.

P.C.B AS is defective.

Change water inlet valve.

Connect the connector or the terminal properly.

Change the P.C.B AS.

YES

Lead wire is defective.

Change the lead wires.

22 TROUBLE SHOOTING GUIDE

PROBLEM CHECK POINT CAUSE

WATER

SUPPLY IS

NOT STOPPED.

Does the water supply continue while the power is turned off?

Does the water supply start as soon as you press the power switch?

Operate the washer after setting the water level to

“HIGH”

YES

The water inlet valve is defective.

YES The triac of P.C.B is defective.

Does the water supply continue after the water reaches to the “HIGH” level?

YES

Is the air tube of water level switch kinked or deformed?

YES

Air tube is defective.

Pressure switch is defective.

CONCERNING WASHING

PROBLEM

THE

PULSATOR

DOES NOT

ROTATE

EVEN IF THE

WATER IS

SUPPLIED.

CHECK POINT CAUSE

Does the motor operate after finishing water supply?

NO YES

Does pulsator rotate in only one direction?

YES The triac of P.C.B is defective.

Does the motor make operating sound?

YES NO

Is the motor coil disconnected?

YES

Motor is defective.

Is the connection condition of capacitor terminal good?

YES

Is the V-belt worn out?

YES

Improper connection.

V-belt is defective.

SOLUTION

Change the water inlet valve.

Change the P.C.B

ASS’Y.

Normal operation.

Change the air tube.

Change the pressure switch.

SOLUTION

Change the P.C.B

ASS’Y.

Normal

Change the motor.

Connect the terminal properly.

Change the V-belt.

Change the motor.

TROUBLE SHOOTING GUIDE 23

CONCERNING DRAINING

PROBLEM CHECK POINT CAUSE

THE WASHER

DOES NOT

DRAIN.

* NON-PUMP

MODEL

Do you install the drain hose properly?

Improper installation.

YES

Is the foreign matter accumulated inside the drain housing?

YES

Malfunction of drainage by the foreign matter.

Is the output voltage of the drain motor normal?

YES

The drain motor is defective.

P.C.B ASS'Y is defective.

THE WASHER

DOES NOT

DRAIN.

* PUMP

MODEL

Do you install the drain hose properly?

YES

Is the foreign matter accumulated inside the pump housing?

Is the output voltage of the drain pump normal?

Improper installation.

YES

Malfunction of drainage by the foreign matter.

YES

The drain pump is defective.

P.C.B ASS'Y is defective.

SOLUTION

Install the drain hose properly.

Remove the foreign matter from the drain housing.

Change the drain motor.

Change the P.C.B

ASS'Y.

Install the drain hose properly.

Remove the foreign matter from the pump housing.

Change the drain pump.

Change the P.C.B

ASS'Y.

24 TROUBLE SHOOTING GUIDE

CONCERNING SPINNING

PROBLEM CHECK POINT CAUSE

YES

Is the lid open?

Does the door switch operate normally?

Door switch is defective.

YES

Does the safety switch operate normally?

Safety switch is defective.

YES

Is the connector of

P.C.B ASS‘Y connected properly?

YES

Improper connection of the connector.

P.C.B. ASS’Y is defective.

THE WASHER

DOES NOT

SPIN.

Does the pulsator rotate while the tub does not rotate?

YES

Drain motor is defective.

Is the input voltage of the drain motor normal?

P.C.B ASS’Y is defective.

YES

V-belt is defective.

Is the V-belt worn out?

Is the input voltage of motor normal?

Is the connection condition of capacitor terminal good?

YES

Motor is defective.

Improper connection.

P.C.B ASS’Y is defective.

SOLUTION

Close the lid.

Change the door switch.

Change the safety switch.

Connect the connector properly.

Change P.C.B ASS’Y.

Change the drain motor.

Change the P.C.B

ASS’Y.

Change the V-belt.

Change the motor.

Connect the terminal correctly.

Change the P.C.B

ASS’Y.

TROUBLE SHOOTING GUIDE 25

CONCERNING OPERATION

PROBLEM CHECK POINT CAUSE

THE INDICATOR

LAMPS(L.E.D)

DO NOT LIGHT

UP WHEN THE

POWER

BUTTON IS

PRESSED.

Is the plug connected to electric outlet?

YES

Is Fuse opended?

Is the condition of power button good?

YES

Is the connector of the

P.C.B. ASS’Y connected properly?

YES

Is input voltage of the transformer normal?

YES

Power button is defective.

Improper connection of the connector.

Transformer is defective.

P.C.B. ASS’Y is defective.

SOLUTION

Connect the plug.

Change Fuse.

Change P.C.B ASS’Y.

Connect the connector properly.

Change P.C.B ASS’Y.

PROGRESS

LAMPS(LED)

DO NOT LIGHT

UP.

Do you press

START/HOLD button?

YES

P.C.B ASS’Y is defective.

MOTOR

ROTATES WHEN

START/HOLD

BUTTON IS NOT

PRESSED.

Does the pressure switch operate normally?

YES

Check the output voltage of P.C.B ASS’Y.

NO Pressure switch is defective.

Abnormal

P.C.B ASS’Y is defective.

ABNORMAL

NOISE DURING

WASH

PROCESS.

Is the strange noise generated when the pulsator rotates in TEST

MODE of P.C.B ASS’Y?

Is the V-belt worn out?

YES There is foreign matter between pulsator and tub.

YES

V-belt is defective.

26 TROUBLE SHOOTING GUIDE

Press START/HOLD button.

Replace P.C.B ASS’Y.

Change the pressure switch.

Change P.C.B ASS’Y.

Remove the foreign matter.

Change the V-belt.

8. PRESENTATION OF THE P.C.B ASS’Y

CONCERNING ERROR MESSAGE

MESSAGE CAUSE SOLUTION

Improper installation of drain hose.

Install drain hose properly.

The drain hose is blocked up by foreign matter.

Remove foreign matter from drain hose.

Drain motor or drain pump is inferior.

Change drain motor or drain pump.

The water tap is closed.

Open the water tap.

The water inlet filter clogged.

Clean the water inlet filter.

It passes over the 60 minutes, yet it doesn’t come to assigned water level.

Check whether or not is comes to the assigned water level.

Wash loads get uneven during spin.

Re-set wash loads evenly.

Poor installation of the unit.

Proper installation.

The lid is opened.

Close the lid.

The safety switch is inferior.

Change the safety switch.

The load sensing is inferior. After the load sensing operates about 7 seconds, the message is displayed during 0.5 second and water level is always fixed ‘high’.

Change the P.C.B. ASS’Y.

The water level sensing is inferior.

Check the water level sensor and the contact part of the connector.

PRESENTATION OF THE P.C.B ASS’Y 27

APPENDIX

■

WIRING DIAGRAM (110V~, NON-PUMP, COLD ONLY)

28 WIRING DIAGRAM

■

WIRING DIAGRAM (220V~, PUMP, COLD+HOT)

WIRING DIAGRAM 29

■

WIRING DIAGRAM (220V~, PUMP, COLD ONLY)

30 WIRING DIAGRAM

■

PARTS DIAGRAM

LEFT

TOP

FRONT

PARTS DIAGRAM 31

32 PARTS DIAGRAM

LEFT

TOP

FRONT

C08

C04

C03

C05

C10

C06

C13

C11

C12

C15

C02

C01

LEFT

TOP

FRONT

C09

C07

C20

C16

C18

C33

C32

C19

C21

C24

C25

C26

C22

C23

C31 C30

C29

C28

C27

C17

PARTS DIAGRAM 33

■

PARTS LIST

No.

A24

A25

A26

PARTS NAME

DECO HANDLE

DOOR *F

CAP HANDLE

PARTS CODE DESCRIPTION

36116DW600 ABS, 178L

36116DW610 ABS VACUUM-METALIZED, 178L

36117ADV00 ABS, 178L

36117ADV10 ABS DECORATOR SPRAY, 178L

3610920400 ABS, 178L

Q'TY

A01 PANEL *B

A02 SWITCH SAFETY

36142T4400 PP(DWF-178L/178M/178W/179M/179W)

3619003171 SF-030A3, CU/T=14, #187

A03 SENSOR PRESSURE AS 3614801635 CDL-15N-1,225DO,3PIN,L1=740,L2=90

A04 VALVE INLET (HOT) 3615403811 AC220-240V/50,60HZ,270DEG,HOT,35mA

A05 VALVE INLET (COLD) 3615403331 AC110-130V/,60HZ,90DEG,COLD,35mA

3615403731 AC220-240V/50,60HZ,90DEG,COLD,35mA

A06 UNIT CAPACITOR AS

A07 CORD POWER AS

3618929100 54µF 200VAC, CAN TYPE

3618911300 12.5UF 400VAC, CAN TYPE

3618911200 11.4UF 400VAC, CAN TYPE

3611332810 7A125V0.75SQ VCTFK TAIWAN LP-70 2.3M

A08

A09

A10

A11

NOZZLE DETERGENT

CASE DETERGENT

DOOR LOCK SWITCH

HINGE DOOR

3611341F00 CHILE. 0.75X3 240H/260H

3611339040 CP-2PIN 100H IEC 53(VCTF,H05VV-F) 3X0.75 1.9M GY

3618112600 PP(DWF-178L/178M/178W/179M/179W)

36111T3100 ABS(DWF-178L/178M/178W/179M/179W)

3619048900

3612902400

5A,JAPAN, 60B, 100V

POLYACETAL

( 1 )

A12 PLATE *T

A13 CAP SCREW

A14 DECORATOR FILM

A15 PANEL *F

A16 PCB AS

A17 HARNESS AS

3614543000

3610902600

36116DWC00

36142T4500

PP(DWF-178L/178M/178W/179M/179W)

PC FILM , 178W

ABS(DWF-178L/178M/178W/179M/179W)

PRPSSWXC61 DWF-178L, SMALL PCB, TAIWAN

PRPSSWXC64 DWF-178L, LARGE PCB, CHILE & PERU

PRPSSWXC69 DWF-178L, LARGE PCB, PANAMA

3612797A30 DWF-178W 110V COLD (NON -PUMP)

A18

A19

A20

A21

A22

A23

SPRING DOOR L

SPRING DOOR R

DOOR BACK *O

DOOR GLASS

DOOR BACK *I

CUSHION DOOR

3612797A40 DWF-178W 220V COLD,HOT (PUMP)

3612797A70 DWF-178W 220V COLD(PUMP)

3615118800 DWF-178

3615118801 DWF-178

36117ADT00 DWF-178L, ABS

36117ADT10 ABS DECORATOR SPRAY, 178L

36117AE000 GLASS,178L,470X217X4.0T

36117AE010 GLASS,178L,470X217X4.0T,NAZCA

36117AE020 GLASS,178L,470X217X4.0T,PATTERN,CHILE

36117ADU00 ABS, 178L

3611559900 NR

REMARK

178L/M/W, 179M/W

220-240V, HOT(OPTION)

110-130V, COLD

220-240V, COLD

For 110V/60Hz

For 220V/50Hz

For 220V/60Hz

110/60, TAIWAN

220/50, CHILE

220/60, PERU

178L/M/W, 179M/W

OPTION(JAPAN)

178L/M/W, 179M/W

DESIGN OPTION

178L/M/W, 179M/W

110/60, TAIWAN

220/50-60, CHILE&PERU

220/50-60, PANAMA

110V/NON-PUMP/COLD

220V/PUMP/C&H

220V/PUMP/COLD

178L/M/W, 179M/W

178L(MOLD)

178L(SPRAY)

OPTION(178L)

OPTION(178L, PERU)

OPTION(178L, CHILE)

178L

178M/W, 179M/W

178L(MOLD)

178L(VACUUMMETALLIZE)

178L(MOLD)

178L(SPRAY)

178L

34 PARTS LIST

No.

PARTS NAME PARTS CODE DESCRIPTION

A27

A28

A29

HOOK DOOR

DOOR *B

DOOR *F

A30 COVER DOOR F

A31 DOOR *B

A32 COVER DOOR F

A33 DOOR *F

3613101800 ABS, DWF-178

361A114200 ABS, 178M/178W

361A114300 ABS, 178M(OPAQUE)

ABS, 178W(TRANSPARENT)

3611432900 ABS, 178M/178W

36117ADR00 ABS, 179M/179W

3611433000 ABS, 179M/179W

36117ADS00 ABS, 179M(OPAQUE)

A34

B01

CAP HANDLE

CLAMP

ABS, 179W(TRANSPARENT)

3610920300 ABS, 179M/179W

4501F06120 SWPA2 ZN8-C D34

3611202200 HSW3 PE-LD

B02 HOSE DRAIN OUTER AS 3613226600 L=950MM, HANGER

3613218800 LD-PE/EVA L=1600 PUMP

B03 SCREW TAPPING

B04 PLATE UPPER

7122401411

3614514600

T2S TRS 4X14 MFZN

PP, 1094

B05 SUPPORTER TUB BL

B06 SCREW TAPPING

B07 SUPPORTER TUB BR

B08 SUPPORTER TUB FR

B09 SUPPORTER TUB FL

B10 COVER *B

B11 SCREW TAPPING

B12 HANDLE CABINET

B13 CABINET SUB AS

B14 BASE *U

B15 LEG ADJUST AS

B16 FOOT

B17 SCREW TAPPING

B18 COVER UNDER

B19 UNIT DRAIN PUMP AS

B20 UNIT DRAIN PUMP

3615302931

7122401411

3615302921

3615302901

3615302911

3611414010

7112401011

3612603300

3610809501

3610388300

3617702123

3612100330

7122401411

3611402715

361897409D

FRPP(5203G6)

T2S TRS 4X14 MFZN

FRPP(5203G6)

372*508*0.4T, SGCC

T1 TRS 4*10 MFZN

PAINTING (0.6)

BUTYL FOOT, CONE SHAPE

BUTYL VE(SMALL)

T2S TRS 4X14 MFZN

1094 PP VIRGIN:RECYCLE=50:50

220V 60HZ,40W,#1806 D/L,L/W=1410

36189L606D 230~240V/50HZ,L=1400,1806 D/L

36189L1400 220V/60HZ,CU 40W,L=1400,BB CUT,B30-5

36189M1400 220~240V,CU 40W,L=1400,BB CUT,B30-6

( 1 )

Q'TY

( 1 )

REMARK

OPTION(JAPAN)

178M/178W

178M(OPTION)

178W(OPTION)

178M/178W

179M/179W

179M(OPTION)

179W(OPTION)

179M/179W

NON-PUMP

PUMP

NON-PUMP

PUMP

OPTION

220/60

230-240/50

220/60

230-240/50

PARTS LIST 35

No.

PARTS NAME PARTS CODE DESCRIPTION

C01 SCREW TAPPING

C02 COVER TUB *O

C03 CAP PULSATOR

C04 SPECIAL SCREW

C05 PULSATOR AS

C06 SPECIAL NUT

C07 SPECIAL SCREW

C08 SUSPENSION AS (B)

C29

C30

BOLT HEX

PULLEY MOTOR AS

7122401611 T2S TRS 4X16 MFZN

3611408500 PP

3610920500 PP, DWF-178W

3616062629 STS430 6X26.5

3619705804 DWF-178W, NANO SILVER

4507D83080 SUS 304

3616007001 SCM24H,6.5*24 101S

3619805700 BLACK SPRING,111

C09 SUSPENSION AS (F)

C10 BALANCER AS

C11 TUB *I

C12 TUB *U

3619805600 YELLOW SPRING,120

3616105500 850M

3618830700 SUS 0.4T, ONE PIECE, 170M

3618816101 PP-M/B

C13 GUIDE FILTER AS

3618816113 PP 1620G

3612508300 850M,GUIDE-A(MEXICO)

C14 FLANGE TUB

C15

C17

C18 HOSE OVERFLOW

C19

FILTER AS

C16 TUB *O

HOSE

VALVE DRAIN AS

C20 HOSE DRAIN INNER AS

HOSE DRAIN *I

C21 BASE

3612508400 850M,GUIDE-B(MEXICO)

3617200600 ALDC12 VE1,6POINT

4505E82002 P.E(POLYESTER 90X120)INSE

3618802630 PP JI-370(8KG)

4500D08210 ID=4.0 KOR

3613208901 PELD, L=280mm

3615408400 1098,s VE TYPE

3613218510 LDPE+EVA L=210.5

3613212120 EVA,L=184

3610387400 SECEN 2.0T

C22 HARNESS EARTH INNER 3612757010 L=560MM

C23 DRAIN MOTOR 36196TAN30 SV-HJ7T22D 100-110 50/60HZ

36196TAN00 SV-MX7T22D 220V50/60HZ

C24 SPECIAL SCREW

C25 GEAR MECHANISM

C26 BOLT HEX

C27 PROTECTOR GEAR

C28 BELT V

3616007001

3617310400

7341801511

3618301310

SCM24H,6.5*24 101S

GM-1000-YJ6P2

6B-1 8*15 MFZN

SBHG 1.2T

3616590220 M20.5 AGING

3616590230 M21, AGING

7650802528 6B-1 8*25 PW(3*28) MFZN

3618401400 M-TYPE(AL), DS=10 DP=48.5 60HZ

C31

C32

C33

BODY BUBBLE AS

MOTOR CONDENSER

CUSHION DOWN

3618401420 M-TYPE(AL) DS=10 DP=53.0 50HZ

3610402931 104KR, HOSE L=2700MM

3964322---

3964322100 W2D50VA014 220V50HZ 1350L KET

3964322200 W2D50UA019 220V60HZ 1350L KET

3611502700 POM(8MM)

36 PARTS LIST

Q'TY

REMARK

178L/M/W, 179M/W

OPTION

100-110/50-60

220/50-60

1 60Hz

50Hz

60Hz

50Hz

OPTION

110/60

220/50

220/60

NON-PUMP

ONLY NON-PUMP

NON-PUMP

PUMP

■

CIRCUIT DIAGRAM (110V~, NON-PUMP, COLD ONLY)

CIRCUIT DIAGRAM 37

■

CIRCUIT DIAGRAM (220V~, PUMP, COLD+HOT)

38 CIRCUIT DIAGRAM

■

CIRCUIT DIAGRAM (220V~, PUMP, COLD ONLY)

CIRCUIT DIAGRAM 39

S/M NO. :

DAEWOO ELECTRONICS CORP.

1-2, Jeo-dong 1(il)-ga, Jung-gu, Seoul, Korea

C.P.O. BOX 8003 SEOUL, KOREA

TELEX: DWELEC K28177-8

CABLE: “DAEWOOELEC”

PRINTED DATE: Oct. 2011

SIIO N C EA E,, IIN C..

서울 종로구 통의동

6번지 이룸빌딩 4층

담 당 민가영 님

M O D E L DWF-178L, DWF-178M/178W

접 수

DWF-179M/179W (S/M)

2011.10.04

M E M O 총 41p

11.10.04-전체신규 41p

11.10.05-1p, 2p, 9p, 24p, 28p, 29p, 30p, 31p, 32p, 33p, 34p, 36p

수정_ 신규 12p

11.10.10-2p, 3p, 34p 수정_ 신규 3p

연락처

VISION

담 당 방 문 수

TEL: 730-0660 FAX: 730-3788

Key features

Automatic water supply system for blanket wash
Function for soak wash
Water current to adjust the unbalanced load
Automatic draining time adjustment
Automatic unbalance adjustment
Circulating-water course and lint filter
Lint filter
Residual time display
Drain motor
Gear mechanism assembly

Frequently asked questions

Refer to the 'How to Connect the Inlet Hose' section of the manual for detailed instructions.

Refer to the 'How to Clean the Filter' section of the manual for detailed instructions.

The lint filter traps lint and debris from the wash water, preventing them from redepositing on your clothes.

Refer to the 'Gear Mechanism Assembly Replacement' section of the manual for detailed instructions.

The residual time display shows the remaining time until the wash cycle is complete.

S/M No. :

Service Manual

Auto Washer

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).

http : //svc.dwe.co.kr

Oct. 2011

Contents

1. SPECIFICATIONS

2. STRUCTURE OF THE WASHING MACHINE

Accessories

3. DIRECTIONS FOR INSTALLATION AND USE

INSTALLING PLACE

Never install in these places

Installation Of the COVER UNDER (Noise Insulation Plate)

How To Install On An Inclined Place

HOW TO CONNECT THE INLET HOSE

HOW TO CLEAN THE FILTER

Pull the power plug out before cleaning it.

Turn off the water supply to the washer and sperate the inlet hose.

Pull the inlet filter out.

Remove the dirt from the inlet filter with a brush.

4. FEATURE AND TECHNICAL EXPLANATION

FEATURE OF THE WASHING MACHINE

WATER CURRENT TO ADJUST THE UNBALANCED LOAD

FUNCTION FOR SOAK WASH(OPTION)

AUTOMATIC WATER SUPPLY SYSTEM FOR BLANKET WASH

FUNCTIONAL PRINCIPLE OF BUBBLE WASHING MACHINE

AUTOMATIC DRAINNING TIME ADJUSTMENT

AUTOMATIC UNBALANCE ADJUSTMENT

CIRCULATING-WATER COURSE AND LINT FILTER

LINT FILTER

RESIDUAL TIME DISPLAY

DRAIN MOTOR

GEAR MECHANISM ASS’Y

5. DIRECTIONS FOR DISASSEMBLY AND ADJUSTMENT

Warning

GEAR MECHANISM ASS’Y REPLACEMENT

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

THE STRUCTURE OF GEAR MECHANISM

HOW TO CHECK THE CLUTCH SPRING PROBLEM

THE PROCESS OF DISASSEMBLE

1

2

3

4

5

6

7

8

THE PROCESS OF ASSEMBLE

1

2

3

4

5

6

7

8

7. TROUBLE SHOOTING GUIDE

CONCERNING WATER SUPPLY

CONCERNING WASHING

CONCERNING DRAINING

CONCERNING SPINNING

CONCERNING OPERATION

8. PRESENTATION OF THE P.C.B ASS’Y

CONCERNING ERROR MESSAGE

APPENDIX

WIRING DIAGRAM (110V~, NON-PUMP, COLD ONLY)

WIRING DIAGRAM (220V~, PUMP, COLD+HOT)

WIRING DIAGRAM (220V~, PUMP, COLD ONLY)

PARTS DIAGRAM

PARTS LIST

CIRCUIT DIAGRAM (110V~, NON-PUMP, COLD ONLY)

CIRCUIT DIAGRAM (220V~, PUMP, COLD+HOT)

CIRCUIT DIAGRAM (220V~, PUMP, COLD ONLY)

S/M NO. :

DAEWOO ELECTRONICS CORP.

PRINTED DATE: Oct. 2011