Daewoo DWM-800C User manual

Service Manual
Washing Machine
Model :
DWM-800C(P)
DWM-900C(P)
DAEWOO ELECTRONICS CO., LTD.

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WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER AUTO WASHER
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WASHING MACHINE
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1. SPECIFICATIONS..................................................................................................... 1
2. EXTERNAL VIEW..................................................................................................... 2
3. PRINCIPLES OF OPERATION AND EXPLANATION OF FUNCTIONS................ 3
4. DIRECTION FOR DISASSEMBLY AND ASSEMBLY..............................................7
5. TROUBLESHOOTING GUIDE ................................................................................10
6. EXPLODED VIEW AND PARTS LIST.....................................................................15
7. WIRING DIAGRAM..................................................................................................23

NO. ITEM SPECIFICATIONS
1 POWER VOLTAGE
SOURCE FREQUENCY 60Hz 50Hz
2 POWER 800C 480W NON PUMP/515W PUMP
CONSUMPTION 900C 630W 560W
3 DIMENSION 800C Net with legs: 830X475X950, Packed without legs : 870X533X947 (WXDXH,mm)
900C Net with legs: 830X475X970, Packed without legs : 870X533X947 (WXDXH,mm)
4 MACHINE 800C Non pump (Net:24kg Packed up:27kg), Pump (Net:25kg Packed up:28kg)
WEIGHT 900C Non pump (Net:25kg Packed up:28kg), Pump (Net:26kg Packed up:29kg)
5 WASHING COURSE STRONG, NORMAL
6 WATER LEVEL 900C-EXTRA HIGH:70l, HIGH:60l, MEDIUM:52l, LOW:44l
7 REVOLUTION WASH 800C-170 rpm / 900C-190 rpm 800C-170 rpm / 900C-190 rpm
PER MINUTE SPIN 1700 rpm 1400 rpm
8 TIMER WASH MAX. 15 min., Manual operation
SPIN MAX. 5 min., Manual operation
9 WASHER TYPE PULSATOR TYPE
10 SPIN TYPE CENTRIFUGALLY SEPARATED TYPE
11 MAXIMUM MASS WASH 800C-6.0 kg / 900C-7.0 kg
OF TEXTILE SPIN 5.5 kg
12 WATER SUPPLY MANUAL
13 SPIN RINSE O
14 OUTLET OF DRAIN HOSE REAR
15 LINT FILTER O
POWER SOURCE SUFFIX EXPLANATION
NON PUMP PUMP
AC 100V 50/60Hz J -
AC 110V 60Hz T TP
AC120V 60Hz A AP
AC 220V 50Hz N NP
AC 220V 60Hz L LP
AC 240V 50Hz M MP
AC 110/220V 50Hz D DP
AC 120/240V 60Hz S SP
1. SPECIFICATIONS
2
SPECIFICATIONS
NOTE : Explanation table for suffix of names.
AC 110/220V AC 220V AC 240VAC 110V AC 120V AC 220V AC 127/220V
Model Name Pump
DWM-XXXX N or NP
Power Source

2. EXTERNAL VIEW
3
STRUCTURE
Structure Of The Wash Machine
Control Panel (Panel b Ass y)
11INLET WATER
Connect inlet hose to supply water in the WASH
TUB or BASKET SPIN.
22LEVER WATER SUPPLY SELECTOR
Left : water supply in the WASH TUB.
Right : water supply in the BASKET SPIN.
33WASH TIMER
Use to select the desired time for washing or rins-
ing.
44WASH ACTION
Use to select wash action. (STRONG”, “NORMAL”)
55VALVE SELECTOR
Select “WASH.RINSE” for washing and rinsing, and
“DRAIN” to drain the water.
(In case PUMP MODEL turn on the drain pump)
“OFF” to turn off the drain pump. (Only PUMP
MODEL)
66SPIN TIMER
Used to select the desired time for spinning.
Wash Spin Wash Timer
15
12
9
6
3
0
Wash Action
Strong
Normal
Spin Timer
5
4
3
2
1
0
Off
Wash-Rinse
Valve Selector
Drain
WATER DRAIN HOSE
(PUMP MODEL)
PULSATOR
BASE UNDER
OVERFLOW FILTER
SPIN DRYER LID
Whenyouopenthislidwhilethespinbasketisspinning,
thespinningwillbestoppedbybrakesystem.
LINT FILTER
Thisisusedforgatheringthe
dregswhicharemadeduring
washing.
WASH TUB LID
Duringoperation,closethe
washtublid.
POWER CORD
Theplug’sshapemaynotcorrespondwiththisdrawing.
“WARNING-THIS APPLIANCE
MUST BE EARTHED”
SAFETY COVER
INNER LID
SPIN DRYER BASKET.
WATER DRAIN HOSE
(NON-PUMP MODEL)
GUIDE
CASCADE
13
2
456

FUNCTION
The main switch remains ON during the washing time set by turning the timer knob.
At the same time, the internal switch T1 and T2 which provide power to WASH MOTOR alternately at assigned Intervals.
Select switch knob sets the wash type by means of controlling the interval of internal switch contact.
STRUCTURE AND PRINCIPLE OF ACTIVATION
3. PRINCIPLES OF OPERATION AND EXPLANATION OF FUNCTIONS
4
WASH TIMER
Wash Timer
CIRCUIT DIAGRAM

5
SPIN TIMER
FUNCTION
The spin timer is the switch providing power to the SPIN MOTOR(DRAIN PUMP MOTOR) during the set spin dry
time, and is a spring-type time switch comes on upon turning and those contact points comes off after the set time.
STRUCTURE AND PRINCIPLE OF ACTIVATION
1) The main shaft turns due to the unwinding force when the spin timer is turned, the spring wound with that force
being delivered through each gear and the spring slowly unwinding at a speed finally controlled by the angle
assembly.
2) The contact point Turns ON and the assembly angle is set in motion which is in the CAM groove in the OFF
state, comes off the groove when the main shaft is turned to wind the spring. The contact point turns OFF,
return to CAM groove when the spring unwind completely.
SAFETY DEVICE FOR BASKET SPIN
The BASKET SPIN is an apparatus which eliminates the water from the laundry through centrifugal separation
generated by rapid revolution(approximately 1,600rpm for 60Hz). Accordingly, there are a DOOR SWITCH to cut
off the power going into the DOOR SPIN is opened and a brake system to stop the rotating BASKET SPIN.
DOOR SWITCH
When the DOOR SPIN is opened during spinning, the DOOR
SWITCH LEVER which sites atop the DOOR SPIN falls off the
contact, and cuts off the power going into the SPIN MOTOR.
Spin Timer

6
BRAKE SYSTEM
BRAKE SYSTEM
When the DOOR SPIN is opened, LINK WIRE which connect
to DOOR SPIN loosens. And then the BRAKE BAND touches
the DRUM COUPLING assemply and stops the SPIN DRYER
as it is pulled by the SPRING in the BRAKE FIX PLATE
assembly.
BRAKE BAND GAP CONTROL METHOD
The BAND BRAKE works best when the gap between it and
the DRUM COUPLING is about 2mm when the DOOR SPIN
is closed. The SPIN DRYER stops slowly if the gap between
the two is too narrow, the SPIN DRYER revolution is affected
and the PLATE CONTROL WIRE may be adjusted to main-
tain the BRAKE BAND gap adequately.
WASH DECELERATOR ASSEMBLY
The initial deceleration following the activation of the WASH MOTOR takes place through the PULLEY MOTOR
and PULLEY PULSATOR, and the secondary deceleration is done by the gear in the GEAR HOUSING which also
increeases their revolution strength. This revolution speed and strength is delivered to the PULSATOR, which is
then able to cause water current that is strong yet soft so that wash loads are not damaged.
PLATE
CO NTROL WIRE
BA
BASE
SKET SPI N
WASH MOTOR
MOTOR WASH
About 1,700rpm(60Hz)
1,400rpm(50Hz)
M-Pully 2.5:1 (50Hz)
3.0:1 (60Hz)
PULLEY PULSATOR
About 560rpm(50/60Hz)
PULSATOR
About 170rpm(50/60Hz)
G/H (3.3:1)

7
GEAR HOUSING
GEAR HOUSING ASS’Y
The GRAR HOUSING ASSEMBLY is a transmission device which turns the PULSATOR at 3.3:1 lowered speed
through the gear unit assembly which receives power at the GEAR SHAFT UNIT.
1) The two sides of the GEAR SHAFT UNIT are supported by the
OILLESS BEARING in the GEAR HOUSING ASSEMBLY.
2) The GEAR UNIT ASSEMBLY is connected to the GEAR
SHAFT 1 and GEAR SHAFT UNIT by the GEAR and GEAR
UNIT respectively.
3) The two sides of GEAR SHAFT 1 are supported by the OIL
SEAL and OILLESS BEARING in the GEAR HOUSING
ASSEMBLY.
SPIN GELLOWS ASS’Y
The wrinkled rubber device on the botton of the BASKET SPIN is
called SPIN BELLOWS ASSEMBLY.
It has a waterseal and a oilless metal inside to prevent leakage
and so that the BASKET SPIN may work smoothly.
Much lint may be obtained depending upon the kind of clothes to
be washed and same of the lint may also be suck to the clothes.
To minimize this possibility, a lint filter is provied on the upper part
of the FILTER OVERFLOW to filter the wash water.
Use of the lint filter during every wash is recommend.
CLEANING THE LINT FILTER
1) Remove the FILTER AS from the FILTER OVERFLOW by pressing it downwards.
2) Turn the FILTER AS inside out, and wash the lint off with water.
3) Return the FILTER AS it was, and fix the FILTER AS to the FILTER OVERFLOW.
STRUCTURE
Filter

8
4. DIRECTION FOR DISASSEMBLY AND ASSEMBLY
DISASSEMBLY
1. Remove 3 screws on the panel
3. Remove control lever and timer.
2. Remove knob and 2 screws on the bracket panel.
Replacing Wash Timer And Spin Timer
1. Remove 2 screws on the cover B. 2. Sepeate link brake from the brak wire assembly.
Replacing Motor For Spin And Wash

9
DISASSEMBLY
3. Remove bolt and nut on the upper side of the drum
coupling as and lift up the basket spin.
5. Remove a belt connecting motor pulley and pulsator
pulley.
7. Remove cap screw(2EA) and 5 screws on flange
of the tub. And lift up the tub assembly.
9. Remove 3 screws and spin motor.
4. Remove 1 screw fixing the drain pump.
(pump model)
6. Separae harness as connefctors.
8. Remove 3 screw on the base and Remove wash
motor.

5. TROUBLESHOOTING GUIDE
10
TROUBLE SHOOTING
PROBLEM
Pulsator
does not
rotate.
CHECK POINT CAUSE SOLUTION
Pull out the power plug to repair and make sure that the Washing Machine has been properly
grounded.
NOTES
Concerning Wash
Is the Power properly connected?
Is the Fuse blown?
Reconnect the Power Cord.
Change the Fuse.
Is there a whirring sound from the
Wash Motor when turned on?
Is the of Condeser properly
connected?
Motor does not start due to
opening the Condenser circuit
Is the Motor hot?
(In case there is Thermal Protector)
Is the Wiring good?
(Refer to the Wiring Diagram)
Is the connact of Wash Timer good? Defective Wash Timer
Defective Wash Motor
Power has been cut off by
the Thermal Protector.
Improper wiring
Reconnect the Condenser.
Replace Wash Timer
Replace Wash Motor
Reload with proper wash
load.
Power restored when
Motor cools
Reconnect the wiring
Pulsator
does not
rotate
smoothly.
Is the Wash Load appropriate?
Are the Agitator and Motor Pulleys
securely assembled?
Does the V-Belt slip?
Are there impurities between the
Pulsator and Tub. Revolution obstructed by impurities Remove impurities after disassembling Agitator
Defect of mechanical
assembly
Worn out V-Belt
Tighten the screws fixed on
the Pulleys.
Replace V-Belt
YES
NO
NO
YES
YES
NO
YES
NO
NO
NO
NO
YES
YES
NO
NO
YES
YES
YES
YES
YES
NO

11
TROUBLE SHOOTING
PROBLEM
Pulsator
does not
rotate
smoothly.
CHECK POINT CAUSE SOLUTION
PROBLEM CHECK POINT CAUSE SOLUTION
Connectrning Spin
Does the Gear Housing Shaft
rotate proply when the Pulsator
has been disassembled?
Worn out the Serration
within the Pulsator.
Defective Gear Housing Replace Gear Housing.
Replace Pulsator
Keep the Door Spin *O
closed during spin.
The contact Door Switch is
open.
The Spin
Dryer does
not spin.
Is the Door Spin *O open?
Is the Fuse blown?
Is there a whirring sound from the
Spin Motor when turned ON?
Change the Fuse.
NO
YES
Pulsator only
rotates in one
direction.
Is the wiring of Wash condenser
properly connected?
Is the wiring of Wash Timer prop-
erly connected? Impropely Wiring
Defective Wash timer Replace Wash Timer.
Reconnect the Wash Timer.
Improper Connection Reconnect
YES
YES
NO
NO
NO
There is
excessive
noise during
Washing
Are there strange noise frome Tub
when the Agitator rotate?
Pulsator improperly
assembled.
Something is in contact with
the Pulsator Pulley or Motor
Pulley or other rotating parts.
Adjust the parts so that
there are no impurities in
contact with rotating parts
Tighten the Pulsator fixing
screw.
Impurites between Agitator
and tub Remove impurities after dis- assembling Pulsator.
YES
NO
YES
YES
NO
NO
NO NO

12
TROUBLE SHOOTING
PROBLEM
The Spin
Dryer does
not spin.
There are
strange noise
and servere
vibration during
spinning.
CHECK POINT CAUSE SOLUTION
Is the Condenser properly
connected?
Motor does not start due to
opening the Condenser circuit.
Reconnect.
The Brake Band is touching
the Drum Coupling Assembly.
NO
YES
NO
NO
NO
YES
YES
YES
YES
YES
YES
NO
YES
Brake wire is too long. Assemble after loosening
Wire Guide Screw and
adjusting downward.
BRAKE SPRING is broken. Replace Brake Spring.
Power has been cut off by
the Thermal Protector
Is the Motor hot? (In case there is
Thermal Protector)
Is the wiring good? (Refer to
Wiring Diagram) Improper wiring Reconnect wiring
Is the Door Switch Lever properly
placed on the Door Spin *O? Defective connection Replace Door Switch or reshape the Lever.
Is the Door Switch terminal prop-
erly connected? Improper wiring Reconnect the terminal.
Is the Contact of Spin Timer good? Defective Spin Timer Replace the Spin Timer.
Defective Spin Motor
Spin Dryer does not balanced
due to wash load.
Tub is in contact with the
object sticking out. Reload the clothes and
press down the Safety
Cover into Spin Basket.
Tighten the Bolt Drum
Coumling Assembly.
Is the assembly between the
Drum Coupling Assembly and
Spin Motor or Spin Dryer loose?
Improper structural assembly
Is the Spin Dryer itself well balanced? Spin Dryer unbalance Re-assemble Spin Dryer.
Are clothes or the Safety Cover
stick out from Spin Basket?
Reload the clothes so they
are well balanced
Is the wash load well balanced?
Replace the Spin Motor.
Power restored when motor
cools.
YES
YES
NO
NO
YES
NO
NO
NO
YES
NO

13
TROUBLE SHOOTING
PROBLEM CHECK POINT CAUSE SOLUTION
The Waterseal or the oil-
less metal in the Bellows
Assembly worn out.
Replace Bellows Assembly.
There is leak-
age during
spin drying.
Is the Bellow Assembly properly
assembled?
The Waterseal or the
Oiless Metal in the Bellows
Assembly is worn out.
Replace Bellows
Assembly.
Waterproofing not working
due to defective assembly. Re-assemble Bellows Assembly.
YES
NO
YES
YES
Spin Dryer
does not
stop with the
Door Spin
*O open
The Brake Band touches the
Drum Coupling when the Door
Spin *O open.
Brake Band is worn out.
Defective
Door Switch
Is the electric connection of the
Door Switch good? Replace Door Switch
The contact of the Door
Switch does not open due
to deformity of the lever of
Door Switch.
Replace Door Switch or
reshape the lever of Door
Switch.
Replace Brake Band or
Brake Fix Assembly.
Brake wire is too short. Replace after loosening
Wire Guide and adjusting
upward.
NO
NO
Concerning Drainga (Pump)
PROBLEM
Drainage is
not satisfac-
tory
CHECK POINT CAUSE SOLUTIONPROBLEM CHECK POINT CAUSE SOLUTION
Is the height of the drainage area where
the Drain Hose hangs over 1m?
The Drain Hose is too high. Hang the Drain Hose lower.
Are there impurities in the Drain
Strainer?
YES
NO
NO
Impurities are obstructing
drainage. Disassemble Agitaor and
take out impurities in drain
Strainer
Impurities are obstructing
drainage.
Are there impurities in the Valve
Housing or Inlet Joint? Remove impurities or
replace Valve Housing or
Inlet Joint.
Impurities are blocking the
Drain Hose Remove impurities
YES
YES
NO

14
TROUBLE SHOOTING
PROBLEM CHECK POINT CAUSE SOLUTION
Draining
does not
function dur-
ing drain
selecting
Is the Wash Timer OFF when the Drain
Selector is in the DRAIN position
Pump Motor does not work
because Power is open. Adjust Wash Timer for ade- quate draining time.
Is the pump Motor wiring properly
connected?
Defective Pump motor Replace Pump Motor
YES
NO
YES
Defective wiring Reconnect wiring
NO
Drain does
not function
during Spin
drying
Are the wiring of the Spin Timer
and the Pump Motor good? Defective wiring Reconnect wiring
Is the Spin Timer’s contact good?
Defective Pump motor Replace Pump Motor
NO
YES
Defective Spin Timer Replace Spin Timer
NO
Concerning Drainage (Non Pump)
PROBLEM CHECK POINT CAUSE SOLUTION
NO
NO
Drainage is
not satisfac-
tory.
Are there impurities in the Drain
Strainer?
Impurities are obstructing
drainage.
Are there impurities in the Valve
Housing or Inlet Joint?
Remove impurities or replace
Valve Housing or Inlet Joint
Impurities are blocking the
Drain Hose Remove impurities
Impurities are obstructing
drainage.
Disassemble Agitator and take
out impurities in Drain Strainer
YES
YES
YES
Water keeps
draining dur-
ing wash
Is the Drain Selector on the opera-
tion Panel at the DRAIN position?
There are impurities
between the impurities
Housing and Valve Bellows.
Remove impurities Or replace
Valve Housing.
Mismanupilation Turn Drain Selector to
WASH/RINSE position
NO

6. EXPLODE VIEW AND PARTS LIST
15
PART LIST
Assy Panel Back

16
PART LIST
assy panel
NO. PART NAME PART CORD SPECIFICATION Q’TY REMARKS
P01 KNOB 3613403700 M-800C,ABS 4800C
3613404600 M-900C,ABS 900C
P02 SCREW TAPPING 7122401411 T2S TRS 4X14 MFZN 3
P03 PANEL BACK 3614234400 M-800C,PP 1800C
3614280600 M-900C,HIPS 900C
P03-1 DECORATOR PANEL B 3611630200 M-900C,ABS 1
P04 HOSE SPRAY 3613201201 DWM-800C, LD-PE 1
P05 LEVER W.S SELECT 3613702000 PP 1
P06 BRACKET PANEL 3610605510 M-800C,PP 1800C
3610607600 M-900C,HIPS 900C
P07 SCREW TAPPING 7122401411 T2S TRS 4X14 MFZN 2
P08 SWITCH SELECTOR 3619045900 GSM-V1621A4 250V 16A 2
P09 TIMER WASH 3619910941 S-K80NT 1800C
3619911800 S-DT90NT,M-900C 900C
P10 LEVER CONTROL 3613701400 DWM-800C,POM 2
P11 TIMER SPIN 3619911000 S-800CA,SAN 1
P12 LINK VALVE 3617804000 800C, PP(L715) 1
P13 SWITCH COVER 3619045400 GSM-V16183A4 250V 16A 1
P14 SWITCH SELECTOR 3619045900 GSM-V1621A4 250V 16A 2
P15 HARNESS DRAIN 3612787400 VSF20/0.18 CONN+187FLAG 1
assy accessory
NO. PART NAME PART CORD SPECIFICATION Q’TY REMARKS
A01 COVER SAFETY 3611418900 PE-LD + EVA 1
A02 LEG 3617702400 PP 4
A03 SCREW TAPPING 7122401211 T2S TRS 4X12 MFZN 4
A04 HOSE DRAIN O AS 3613224310 820MM,NON CLAMP 1
A05 CLAMP HOSE O 3611202400 HSW-3 1 PUMP
A06 HOSE DRAIN O 3613222600 HOSE PUMP 1 PUMP
A07 GUIDE DRAIN HOSE 3612502300 PP 1 PUMP

17
PART LIST
Assy Tub

18
PART LIST
assy tub
NO. PART NAME PART CORD SPECIFICATION Q’TY REMARKS
T01 BASE WATER SUPPLY 3610389501 RECYCLED PP, PPR-120 1
T02 FILTER OVERFLOW 3611903700 PP 1
T03 FILTER AS 3611904000 PP + POLYESTER 1
T04 RING BASKET 3614602300 PP 1
T05 SCREW TAPPING 7122401411 T2S TRS 4X14 MFZN 4
T06 BASKET SPIN 3619103300 PP 1
T07 LINK BRAKE 3617801600 PP BAND W6 1
T08 SPRING COVER 3615110400 HSW3 1
T09 DOOR SPIN O 3611797800 M-800C,PP 800C
36117AAM00 M-900C, HIPS 1900C
T10 COVER INNER 3611418800 PP 1
T11 PLATE T 3614522500 PP 1
T12 BELLOWS ASS'Y 3616402520 DWM-800C 1
T13 FIXTURE BELLOWS 3612005000 PP 1
T14 GUIDE CASCADE 3612509000 PP 1
T15 SPECIAL SCREW 3616002901 SUS 304,6*19.5(NON SLOCK) 1
T16 PULSATOR AS 3619706500 800C 1
T17 CAP SCREW 3610911700 PP 2
T18 TUB 3618817900 PP 1
T19 ROD VALVE 3618504000 PP 1
T20 BELLOWS VALVE 4505C06041 NBR, 7510/800/424 1
T21 VALVE CAP 4505F06013 PE-HD 1
T22 SPRING VALVE 4505C06020 SUS304 WR 1.0D 1
T23 CASE VALVE 3611131500 PP 1NON PUMP
3611131600 PP PUMP
T24 INLET JOINT 3617504100 PP 1
T25 HOSE OVERFLOW 3613220800 LDPE 1 JAPAN
T26 PROTECTOR F.B 3618303500 NBR 1
T27 GEAR HOUSING ASS'Y 3617306201 3.3:1 1
T28 SPECIAL BOLT 3616008400 M6 SIDE-FIXING 1
T29 PULLEY PULSATOR 3618433100 M-900C 1
T30 SCREW TAPPING 7122502011 T2S TRS 5X20 MFZN 5
T31 RING O 4506H05050 N.B.R 1
T32 DOOR WASH 3611797900 M-800C,PP 800C
36117AAN00 M-900C,HIPS 1900C

19
PART LIST
Assy Main