Daewoo DWF-179W, DWF-179M, DWF-178W, DWF-178M, DWF-178L Service Manual
Service Manual
Auto Washer
Model: DWF-178L
DWF-178M/178W
DWF-179M/179W
S/M No. :
✔ 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
WF17800001
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................................................................................................................... 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...........................................................................................................................15
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
SPECIFICATIONS
2
1 POWER SOURCE A.C 110V/60Hz , A.C 220V/50Hz , A.C 220V/60Hz
2 POWER 110V/60Hz 430W
CONSUMPTION
220V/50Hz,60Hz
530W
3 MACHINE WEIGHT 42kg(Non-Pump) / 43kg(Pump)
4 DIMENSION (WxHxD) 598 x 956 x 643 mm
5 WASHING COURSE FULL AUTOMATIC 6 COURSES
(FUZZY, BLANKET, ECONOMY, BABY CARE, SPORTS WEAR, DELICATE)
6 WATER CONSUMPTION 185ℓ
7 WATER LEVEL HIGH 91ℓ
SELECTOR MED 82ℓ
LOW 69ℓ
SMALL 56ℓ
8 OPERATING WATER PRESSURE 0.03MPa ~ 0.8MPa (0.3kgf/cm2~ 8kgf/cm2= 2.94N/cm2~ 78.4N/cm2)
9 REVOLUTION WASH 130~150 rpm(60Hz) / 125~140 rpm(50Hz)
PER MINUTE SPIN 710~740 rpm(60Hz) / 640~675 rpm(50Hz)
10 PULSATOR TORNADO PULSATOR with 4 WINGS (ø 376mm)
11 WATER LEVEL CONTROL ELECTRONIC SENSING
12 GEAR MECHANISM ASS'Y HELICAL GEAR
13 LINT FILTER O
14 SOFTENER INLET O
15 FUNCTION FOR TIME DELAY O (OPTION)
(RESERVATION)
16 ALARM SIGNAL O
17 RESIDUAL TIME DISPLAY O
18 AUTOMATIC WATER SUPPLY O
19 FUNCTION FOR BUBBLE O (OPTION)
20 AUTOMATIC RE-FEED WATER O
21 AUTOMATIC POWER OFF O
22 DOOR TYPE (TRANSPARENT)
No. ITEM DWF-178L DWF-178M/178W DWF-179M/179W
GLASS DOOR PLASTIC DOOR PLASTIC DOOR
( TRANSPARENT ) ( 178W/179W : TRANSPARENT )
( 178M/179M : OPAQUE )
2. STRUCTURE OF THE WASHING MACHINE
STRUCTURE
3
Accessories
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.
• COLD WATER TAP
After using the washer,
close the water tap.
• BLEACH INLET
• SOFTENER INLET
• DETERGENT CASE
• GROUND WIRE
In case of 3-wire power cord,
ground wire will not be provided.
• POWER CORD
• LINT FILTER
• CONTROL PANEL
• POWER SWITCH
• PULSATOR
• ADJUSTABLE LEG
COVER UNDER [OPTION] WATER TAP ADAPTER INLET HOSE
HOSE DRAIN [FOR PUMP]
HOSE DRAIN CLAMP HOSE DRAIN[FOR NONPUMP] CONNECTOR INLET [OPTION]
3613218800 3613226600
UP
3611402715
3. DIRECTIONS FOR INSTALLATION AND USE
DIRECTIONS FOR INSTALLATION AND USE
4
The openings must not
be obstructed by carpeting when the washing
machine is installed on a
carpeted floor.
■■
Installation Of the CO VER UNDER (Noise Insulation Plate)
■■
How To Install On An Inclined Place
● 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.
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
2
Push the noise insulation plate
into the end, which decrease
the noise made by this
washer.
1
The packing box
opened, there is a
noise insulation plate.
Put the noise insulation
plate at the bottom of
the back.
2
Check the Horizon
Status
Check the position of tub above
the center of the washer.
1
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
DIRECTIONS FOR INSTALLATION AND USE
5
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 connector A tightly.
5
Connect the inlet
hose to the water tap
adapter by puling down
the collar of the hose end.
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.
■
HO W 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
3
Insert the inlet hose adapter
into the water inlet of a 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.
2
Connect the
connector-inlet
supplied if necessary.
Inlet Hose
Connector D
Rubber
Packing
Connector C
Connector
Inlet
Rubber
Packing
Connector D
Connector C
Hose
WASH
SPRAY
RINSE
RINSE
SPIN
FUZZY
BLANKET
ECONOMY
SUIT
DETERGENT
SOAK
CONTROL
ONL
Y
SPIN
WATER
LEVEL
RES.
COURSE
PROCESS
START
HOLD
POWER
WASH
TEMP.
HOT
COLD
HIGH
MEDI
UM
L
OW
S
MAL
L
RES.
REMA
I
N
MIN.
DWF-1
7
4W
TAPE
Connector B
Connector A
DIRECTIONS FOR INSTALLATION AND USE
6
■
HO W 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 off the
water supply
to the washer
and sperate 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 “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.
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 to
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 counter
clockwise.
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
4. FEATURE AND TECHNICAL EXPLANATION
FEATURE AND TECHNICAL EXPLANATION
7
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 0.3 0.3 0.3 0.3 •••••••
35 SEC. (About 29 Times)
FILL WASH STOP WASH STOP
• 30” 2’ 30” 2’
SOAK PROCESS MAIN PROCESS
60 Minute
FEATURE OF THE W ASHING MACHINE
1 The first applying Radical Technology in the world....go beyond washing, sterilize your clothes and deodorize a
bad smell.(optional function)
2 The first air bubble washing system in the world.
3 Quiet washing through the innovational low-noise design.
4 The wash effectiveness is much more enhanced because of the air bubble washing system.
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 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
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
AUTOMATIC W ATER 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.
‘ ’ mark indicates the operation of the water currents to adjust the unbalanced load.
NOTES
FEATURE AND TECHNICAL EXPLANATION
8
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
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 Draining 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 AND TECHNICAL EXPLANATION
9
Contact of safety switch
Lid opening
Contact lever A
Normal (ON)
Position of
unbalanced load (OFF)
AUTOMATIC UNBALANCE ADJUSTMENT
CIRCULATING-W ATER 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.
Lid closing
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 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 AND TECHNICAL EXPLANATION
10
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
RESIDU AL TIME DISPLAY
DRAIN MOTOR
Bleach
Inlet
Filter
Pulsator
FEATURE AND TECHNICAL EXPLANATION
11
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
130-150r.p.m(60Hz)
125-140r.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 FOR DISASSEMBLY AND ADJUSTMENT
12
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 Raise the top plate on the outer cabinet.
2 Loosen four screws mounting outer tub cover and
remove outer tub cover from the tub ass’y.
4 Loosen the pulsator mounting screw and remove the
pulsator.
3 Remove the cap pulsator from the pulsator ass'y by
using screw driver.
5 Remove the special nut by using “T” type box
wrentch.
6 Remove the special washer.
GEAR MECHANISM ASSY REPLACEMENT
Loading...