Service Manual
Auto Washer
Model: DWF-760/761/762
DWF-810/811/812
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 CO., LTD.
http : //svc.dwe.co.kr |
Aug. 2002 |
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 |
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1. SPECIFICATIONS................................................................................................................... |
2 |
2. STRUCTURE OF THE WASHING MACHINE........................................................................ |
3 |
3. FUNCTIONS OF THE CONTROL PANEL ............................................................................. |
4 |
4. DIRECTIONS FOR INSTALLATION AND USE |
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LOCATION OF WASHER................................................................................................................ |
5 |
DRAIN SYSTEM.............................................................................................................................. |
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HOW TO CONNECT THE INLET HOSE........................................................................................ |
6 |
HOW TO CLEAN THE FILTER ....................................................................................................... |
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5. FEATURE AND TECHNICAL EXPLANATION |
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FEATURE OF THE WASHING MACHINE...................................................................................... |
8 |
WATER CURRENT TO ADJUST THE UNBALANCED LOAD....................................................... |
8 |
AUTOMATIC WATER SUPPLY SYSTEM ....................................................................................... |
8 |
AUTOMATIC DRAINING TIME ADJUSTMENT.............................................................................. |
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SOFTENER DISPENSER............................................................................................................. |
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AUTOMATIC UNBALANCE ADJUSTMENT................................................................................. |
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CIRCULATING-WATER................................................................................................................. |
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LINT FILTER.................................................................................................................................. |
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RESIDUAL TIME DISPLAY........................................................................................................... |
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DRAIN MOTOR ............................................................................................................................. |
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GEAR MECHANISM ASS’Y ......................................................................................................... |
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PRINCIPLE OF BUBBLE GENERATOR ...................................................................................... |
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FUNCTIONAL PRINCIPLE OF BUBBLE WASHING MACHINE ................................................. |
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6. DIRECTIONS FOR DISASSEMBLY AND ADJUSTMENT |
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GEAR MECHANISM ASS’Y REPLACEMENT............................................................................. |
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MOTOR SYNCHRONOUS AND VALVE REPLACEMENT .......................................................... |
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BRAKE ADJUSTMENT................................................................................................................. |
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7. THE REPAIR METHOD OF GEAR MECHANISM FOR CLUTCH SPRING PROBLEM |
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THE STRUCTURE OF GEAR MECHANISM ............................................................................... |
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HOW TO CHECK THE CLUTCH SPRING PROBLEM................................................................ |
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THE PROCESS OF DISASSEMBLE............................................................................................ |
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THE PROCESS OF ASSEMBLE.................................................................................................. |
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8. TROUBLE SHOOTING GUIDE |
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CONCERNING WATER SUPPLY .................................................................................................. |
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CONCERNING WASHING ........................................................................................................... |
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CONCERNING DRAINING........................................................................................................... |
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CONCERNING SPINNING ........................................................................................................... |
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CONCERNING OPERATION......................................................................................................... |
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9. PRESENTATION OF THE P.C.B ASS’Y ............................................................................... |
29 |
APPENDIX |
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WIRING DIAGRAM ....................................................................................................................... |
30 |
PARTS DIAGRAM & PARTS LIST ................................................................................................ |
34 |
CIRCUIT DIAGRAM ...................................................................................................................... |
43 |
1. SPECIFICATIONS
NO. |
ITEM |
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DWF-760 |
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DWF-761 |
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DWF-762 |
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DWF-810 |
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DWF-811 |
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DWF-812 |
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1 |
POWER SOURCE |
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AVAILABLE IN ALL LOCAL AC VOLTAGE |
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POWER |
50Hz |
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240W(100V)/320W |
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CONSUMPTION |
60Hz |
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280W(100V)/300W(110~127V) / 340W(220V) |
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3 |
MACHINE |
NET |
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28kg/28.5kg(pump) |
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28.5kg/29kg(pump) |
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WEIGHT |
GROSS |
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31.5kg/32kg(pump) |
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32kg/32.5kg(pump) |
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4 |
DIMENSION (WXHXD) |
525X858X535 |
525X891X535 |
525X948X535 |
525X858X535 |
525X891X535 |
525X948X535 |
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5 |
MATERIAL OF INTERNAL TUB |
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PLASTIC |
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STAINLESS STEEL |
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6 |
WATER LEVEL SELECTOR |
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HIGH(55l), MID(45l), LOW(31l) |
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7 |
OPERATING WATER PRESSURE |
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29kPa ~ 784kPa (0.3kgf/cm2~8kgf/cm2) |
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8 |
MAXIMUM MASS OF TEXTILE |
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5.5kg |
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6.0kg |
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REVOLUTION |
WASH |
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125~145(50Hz), 130~150(60Hz) |
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9 |
SPIN |
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660~690(100V/50Hz), 680~730(50Hz), 780~810(100V/60Hz), 770~800(60Hz) |
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PER MINUTE |
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SUIT |
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50(50Hz), 60(60Hz) |
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10 |
WATER CONSUMPTION |
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APPROX. 130l/CYCLE |
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11 |
WATER LEVEL CONTROL |
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ELECTRONICAL SENSOR |
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12 |
ANTI NOISE PLATE |
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OPTION |
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13 |
GEAR MECHANISM ASS’Y |
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SPUR GEAR |
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14 |
LINT FILTER |
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15 |
SOFTENER INLET |
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ALARM SIGNAL |
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17 |
AUTO. WATER SUPPLY |
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18 |
FUNCTION FOR BUBBLE |
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OPTION |
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19 |
AUTO RE-FEED WATER |
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20 |
AUTO POWER OFF |
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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.
•Page references are included next to same features.
Refer to those pages for more information about the 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
• COLD WATER TAP After using the washer, close the water tap
• DETERGENT CASE
• LINT FILTER
• POWER SWITCH |
• GROUND WIRE |
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In case of 3-wire |
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power cord, ground |
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wire will not be |
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provided |
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• POWER CORD |
• PULSATOR
• DRAIN HOSE
• ADJUSTABLE LEG
ACCESSORIES
DRYTEN(OPTION) |
HOSE ADAPTER |
UNDER COVER(OPTION) HOSE CONNECTOR(OPTION) |
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UP |
In case of screw shaped inlet hoses |
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water tap adapters will not be provided. |
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DRAIN HOSE |
INLET HOSE(OPTION) CONNECTOR INLET(OPTION) |
NON PUMP MODEL PUMP MODEL
STRUCTURE 3
3. FUNCTIONS OF THE CONTROL PANEL
Control panel has micom sensor.
As the buttons are pressed, the lamps indicating the selection of your desired washing program will light up.
DWF-760M
HOT
COLD
ONLY SPIN
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• Press this switch to turn the power on or off. |
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• It can be used to choose water temperature to be supplied. |
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• As the button is pressed, water temperature will be repeated. |
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COLD COLD+HOT HOT |
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• In case of the single valve model, there is no wash temperature selector function. |
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• It can be used to adjust amount of water according to the size of the load to be |
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washed. |
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• As the button is pressed, water level is selected by |
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MID HIGH LOW |
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RES. |
• It can be used to pre-engage time for wash. |
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•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
CONTROL |
after selection each process by the process button. |
ONLY SPIN |
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Also, this button can be used to spin only. |
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• It can be used to select the full-automatic program. |
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 operation;
press the “START/HOLD” button Select the program that you want to change press the “START/HOLD” button again.
NOTES • If you open the Door(Lid) When wash and rinse processing, the PULSATOR is not working with “LE” signal on the PCB and Buzzer alarm.
• And if close the Door(Lid), the remain process will be done continuously.
4 CONTROL PANEL
4.DIRECTIONS FOR INSTALLATION AND USE
■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.
C
B
A
UP |
DOWN |
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 29kPa ~ 784kPa (0.3kgf/cm2 ~ 8kgf/cm2)
■ 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 |
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Drain Outlet
Drain hose
Drain hose
NOTES
The opening must not be obstructed by carpeting when the washing machine is installed on a carpeted floor.
Non-Pump Model
1In case that it goes over a door sill. |
2In case of extending the drain hose. |
3Be careful that the end of the drain |
Don’t let the height of the drain |
Don’t let the total length exceed 3m. |
hose is not immersed in water. |
hose exceed 20cm from the bottom |
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of washer. |
3m |
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20Cm |
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Pump Model |
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Laundry tub drain system |
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Standpipe drain system |
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• Top of tub must be at |
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• Needs a 3cm minimum diameter standpipe with minimum |
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least 86cm (34inches) |
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carry away capacity of 30liters per minute. |
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high and no higher than |
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• Top of tub must be at |
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130cm from bottom of |
A |
least 86cm(34inches) |
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washer (A) |
high and no higher than |
B |
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130cm from bottom of |
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washer (B) |
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PROCEDURE 5
■ 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 |
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Pull down the collar |
Loosen the four |
1of the inlet hose to |
2screws at the water |
separate it from the |
tap adapter, but don’t |
water tap adapter. |
loosen the screws until |
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they are separated from |
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the water tap adapter. |
← collar |
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Remove the tape, |
Connect the inlet |
4and screw connector |
5hose to the water tap |
B into connect A tightly. |
adapter by pulling down |
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the collar of the hose end. |
Connector A
Connector B
FOR SCREW-SHAPED TAP |
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Connect the inlet |
Connect the connec- |
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1hose to the water tap |
2tor-inlet supplied if |
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by screwing the con- |
necessary. |
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nector D tightly. |
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Connector |
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Inlet |
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Rubber |
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Connector D |
Packing |
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Rubber |
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Connector D |
Packing |
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3Connect 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.
TAPE
6Connect the inlet hose adapter of the hose to the water inlet of the washer by turning it clockwise to be fixed tightly.
• Please packing inside the inlet hose adapter of the hose.
3Insert the inlet hose adapter into the water inlet of washer and turn it to be fixed.
Inlet Hose |
Connector C |
Hose |
• Assert the packing in the inlet |
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Connector C |
6 DIRECTIONS
■ HOW TO CLEAN THE FILTER
CLEANING THE LINT FILTER |
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Pull the Filter frame |
Turn the lint filter |
1upward. |
2inside out, wash the |
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lint off with water. |
Lint Filter |
Filter Frame |
3Return the filter as it was, and insert the filter frame into the slot.
CLEANING THE WATER INLET FILTER
• Clean the filter when water leaks from the water inlet.
Pull the |
Turn off the |
Pull the |
Remove the dirt |
1power plug |
2water supply |
3inlet filter out. |
4from the inlet filter |
out before |
to the washer |
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with a brush. |
cleaning it. |
and separate |
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the inlet hose. |
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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.
Put down the |
Turn the cap counter- |
Pull out the filter assembly off |
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1remained water in the |
2clockwise. |
3the case of the main body. |
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hose. And put a container |
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SLIT |
under the filter to collect |
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FILTER |
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water. |
CAP |
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CASE |
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CAP |
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FILTER CONTAINER |
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4Clean the drain filter removing the foreign stuffs.
FILTER
CAP
5Put 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
6Turn the cap clockwise tightly.
CAP
CONNECTION 7
5. FEATURE AND TECHNICAL EXPLANATION
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
WASH |
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DRAIN |
SPIN |
FILL |
RINSE 1 |
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DRAIN |
SPIN |
FILL |
RINSE 2 |
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DRAIN |
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MOTOR C.W
SINGAL C.C.W
TIME(SEC.) |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
••••••• |
35 SEC. (About 30 Times)
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.
8 CONVENIENCE
AUTOMATIC DRAINNING TIME ADJUSTMENT
This system adjusts the draining time automatically according to the draining condition.
Draining |
Good draining |
The washer begins spin process after drainage. |
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Bad draining |
Draininig time is prolonged. |
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condition |
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No draining |
Program is stopped and gives the alarm. |
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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
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
2 In case of continuous draining, residual drain time is determined by micom. Draining time as a whole = D + 30
Residual drain time.
The time remembered by micom.
EXPLANATION 9
SOFTENER DISPENSER
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
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Wash |
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Intermittent |
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Hold |
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Intermittent |
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Rinse |
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Spin |
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Spin |
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Spin |
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Normal |
Centrifugal |
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Flow in |
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FLOW OF THE SOFTENER INSIDE OF THE BALANCER |
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Room inside |
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the balancer |
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Centrifugal force |
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Flowing by weight |
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NOTES Softener moves into the next room when r.p.m of the tub is more than 100 r.p.m.
HOW TO CHECK MOVEMENT
Pour a reasonable amount penser and operate the rinse cycle, make sure that tub through softener outlet
Balancer
Softener
outlet
B D
A C
Softener inlet
10 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.
2In 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.
3In 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.
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
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.
Filter |
Tub |
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Water |
Outer tub |
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channel |
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Pulsator |
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EXPLANATION 11
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.
HOW TO REPLACE LINT FILTER
Filterr
BleachBleachInlet
Inlet
Pulsator
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
RESIDUAL TIME DISPLAY
When the START/HOLD button is pressed, the residual time counted down according to process.
When operation is finished, the TIME INDICATOR will light
DRAIN MOTOR
STRUCTURE
Pull
Loosen
Pulley
Lever
Inductive ring
Magnet
Coil of motor
Magnet of motor
FUNCTIONAL PRINCIPLE
1When the DRAIN MOTOR connected to the power revolves the pulley by gear assembly for reducing.
2 When the pulley is rotated, the pulley winds the wire to 3 Therefore, rotation of pulley changed to the linear moving 4 The wire pulls the brake lever of Gear Mechanism Ass’y
5After the wire pulled, gear assembly is separated from lever.
6 When the power is turned off, the drain valve is closed
12 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.
Pulsator shaft |
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Spin shaft |
One way clutch |
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bearing |
Gear unit as |
Brake lever |
Clutch spring |
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Clutch boss |
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Gear pulley |
Planetary gear |
Sun gear |
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Internal gear |
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Pulsator
Gear unit as
1 revolution
Motor
5.2 revolutions Gear pulley
V-belt
Motor |
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1490 r.p.m |
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(50Hz) |
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Pulsator |
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Gear Unit as |
Gear Pulley |
138 r.p.m |
720 r.p.m |
Tub |
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Directly |
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720 r.p.m |
PRINCIPLE OF BUBBLE GENERATOR
STRUCTURE
Bobbin & coil
Magnet |
Armature |
Bellows |
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Trans core |
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Air out hole
Air
Air
Protector A
Air in hole
Protector B
EXPLANATION 13