Daewoo DWF-770 Service Manual
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Daewoo DWF-770 Service Manual

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Service Manual
Auto Washer
Model: DWF-770
DWF-820
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
S/M No. : WF770SE001
Oct. 2003

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Oscar N Bor
April 9, 2025

I am looking for for the modelDWF-I 600c

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1 comments:
Mr. Anderson
May 14, 2025

The specifications of the Daewoo DWF-770 model are:

1. Power Source: Available in all local AC voltage
2. Power Consumption: 320W at 50Hz; 300W (110–127V) / 340W (220V) at 60Hz
3. Weight:
- Non-pump: 30.5 kg
- Pump: 31 kg
4. Dimensions (W x H x D): 525 x 858 x 535 mm
5. Internal Tub Material: Plastic
6. Programs: 6 washing programs (Fuzzy, Soak, Heavy, Wool, Speedy, Blanket)
7. Water Level Selector: High (55L), Mid (45L), Low (31L), Small (25L)
8. Operating Water Pressure: 0.3 kgf/cm² to 8 kgf/cm² (2.94 N/cm² to 78.4 N/cm²)
9. Maximum Mass of Textile: 5.5 kg
10. Revolution per Minute:
- Wash: 125–145 RPM (50Hz), 130–150 RPM (60Hz)
- Spin: 710–725 RPM (50Hz), 760–785 RPM (60Hz)
- Wool: 50 RPM (50Hz), 60 RPM (60Hz)
11. Water Consumption: Approx. 130L per cycle
12. Water Level Control: Electronic sensor

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Summary of Contents for Daewoo DWF-770

  • Page 1 S/M No. : WF770SE001 Service Manual Auto Washer Model: DWF-770 DWF-820 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).

  • Page 2: Table Of Contents

    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...

  • Page 3: Specifications

    1. SPECIFICATIONS DWF-770 DWF-771 DWF-772 DWF-820 DWF-821 DWF-822 ITEM 1 POWER SOURCE AVAILABLE IN ALL LOCAL AC VOLTAGE POWER 50Hz 320W CONSUMPTION 60Hz 300W(110~127V) / 340W(220V) 30.5kg 31kg MACHINE NON-PUMP 31kg 31.5kg WEIGHT PUMP 525X858X535 525X891X535 525X948X535 525X858X535 525X891X535 525X948X535...

  • Page 4: Structure Of The Washing Machine

    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. @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @...

  • Page 5: Functions Of The Control Panel

    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. 770W / 820W • Press this switch to turn the power on or off. •...
  • Page 6 770D / 820D • Press this switch to turn the power on or off. • It can be used to choose water temperature to be supplied. • As the button is pressed, water temperature will be repeated. COLD COLD+HOT • In case of the single valve model, there is no water temperature selector function. •...

  • Page 7: Washing Procedure And Program Selection

    4. WASHING PROCEDURE AND PROGRAM SELECTION Full Automatic Program 770W / 820W 1. FUZZY PROGRAM (SENSOR); • This selection is for general washing except extraordinary clothes. • Artificial brain sensor selects properly the various kind of washing condition such as washing time, rinse times, spin time and water level.
  • Page 8 770D / 820D 1. FUZZY PROGRAM (SENSOR); • This selection is for general washing except extraordinary clothes. • Artificial brain sensor selects properly the various kind of washing condition such as washing time, rinse times, spin time and water level. •...

  • Page 9: Reserved Washing

    Reserved Washing • Reservation can be made from 2 hours to 48 hours. example) To make reservation to complete washing in 8 hours. • Procedure to press the button. Select the program. Adjust to water level and water temperature. HOURS HOURS "--"...

  • Page 10: Directions For Installation And Use

    5. 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. •...

  • Page 11: How To Connect The Inlet Hose

    How to Connect the Inlet Hose Be careful not to confuse hot water inlet and cold water inlet. 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.

  • Page 12: How To Clean The Filter

    How To Clean The Filter CLEANING THE LINT FILTER Pull the Filter frame Turn the lint filter Return the filter as it was, and upward. inside out, wash the insert the filter frame into the lint off with water. slot. Lint Filter Filter Frame CLEANING THE WATER INLET FILTER...

  • Page 13: Feature And Technical Explanation

    6. FEATURE AND TECHNICAL EXPLANATION Feature of the Washing Machine 1 The first air bubble washing system in the world.(Option) 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.

  • Page 14: Automatic Draining Time Adjustment

    Automatic Drainning time Adjustment This system adjusts the draining time automatically according to the draining condition. Good draining The washer begins spin process after drainage. Draining Bad draining Draininig time is prolonged. condition No draining Program is stopped and gives the alarm. FUNCTIONAL PRINCIPLE 1 The micom can remember the time from the begining of drain to reset point when the pressure switch reaches to “OFF”...

  • Page 15: Softener Dispenser

    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.

  • Page 16: Automatic Unbalance Adjustment

    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.

  • Page 17: Lint Filter

    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. Filter Filter To minimize this possibility a lint filter is provided on the upper part of the tub to filter the wash water as it Bleach Bleach Inlet Inlet...

  • Page 18: Gear Mechanism Ass'y

    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 Spin shaft One way clutch bearing Gear unit as Sun gear Planetary gear Internal gear Clutch spring...

  • Page 19: Functional Principle Of Bubble Washing Machine

    PRINCIPLE OF INTAKE & OUTLET OF THE AIR INTAKE : ARMATURE moves up, and BELLOWS inhales the air. At the same time, protector B is open and A is close. OUTLET : ARMATURE moves down, and BELLOWS exhausts the air. At the same time, protector B is close and A is opend.

  • Page 20: Directions For Disassembly And Adjustment

    7. DIRECTIONS FOR DISASSEMBLY AND ADJUSTMENT Warning BEFORE ATTEMPTING TO SERVICE OR ADJUST ANY PART OF THE WASHING MACHINE, DISCON- NECT THE POWER CORD FROM THE ELECTRIC OUTLET. Gear Mechanism Ass y Replacement Raise the top plate on the outer cabinet. Loosen the pulsator mounting screw and remove Remove outer tub cover from the tub ass’y.
  • Page 21 Lay the front of the washer on the floor. Remove four bolts mounting the gear mechanism Remove four bolts mounting the plate-gear protect by ass’y by using a box wrench. using a box wrench and remove plate-gear protect. Remove the V-belt. Pull out the gear mechanism assy.

  • Page 22: Motor Synchronous And Valve Replacement

    Motor Synchronous And Valve Replacement(Non Pump Model) Lay the front of the washer on the floor. Take out the wire of motor synchonous from the Loosen two special screw of motor synchronous. bracket. Separate the motor sycnchronous from the base. Turn the valve by using screw driver as shown in Remove the valve lid from the valve drain assy.

  • Page 23: The Repair Method Of Gear Mechanism For Clutch Spring Problem

    8. THE REPAIR METHOD OF GEAR MECHANISM FOR CLUTCH SPRING PROBLEM T h e S tructure O f G e a r M echanism Clutch Lever Bearing Clutch Boss Clutch Tip Clutch spring Coupling Pulley Spring Washer Fastening Nut Pulley Shaft Clutch Boss Ass’y Pulley Shaft Fastening Nut...

  • Page 24: How To Check The Clutch Spring Problem

    H o w T o C h e c k T h e C l u t c h S pring 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.

  • Page 25: The Process Of Disassemble

    The Process Of Disassemble Disassemble 1 Process Notice Use wrench or driver - ratchet handle - extension bar - socket : 10mm Remove the protector Release screws marked 4-point Remove the v-belt Use fixing jig for pulley as to see fig 1. and 17mm-socket for nut Loosen the fastening nut Take out plain washer if it has...
  • Page 26 Disassemble 2 Process Notice Disassemble the pulley Catch the boss and pull upward with spiral rotate in the clockwise direction Disassemble the clutch boss assembly Separate coupling from clutch boss ass’y Clean the drum plate, coupling surface and contact face between drum plate and cou- pling It is necessary to keep cotton...

  • Page 27: The Process Of Assemble

    The Process Of Assemble Assemble 1 Process Notice Check the uneven face of cou- pling is assembled upward Assemble the coupling - 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 new clutch boss...
  • Page 28 Assemble 2 Process Notice - Use fixing jig and 17mm socket wrench as if disassembling, as fastening torque about Assemble the fastening nut 100~200kgf-cm. - Check the end-play, up and downward and check the bind- ing force, too much or not on bi-direct of rotation.

  • Page 29: Trouble Shooting Guide

    9. 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 Do you open the water Open the water tap.

  • Page 30: Concerning Washing

    PROBLEM CHECK POINT CAUSE SOLUTION Does the water supply The water inlet valve is Change the water inlet continue while the power defective. valve. is turned off? Does the water supply start The triac of P.C.B is Change the P.C.B ASS’Y. as soon as you press the defective.

  • Page 31: Concerning Draining

    Concerning Draining PROBLEM CHECK POINT CAUSE SOLUTION Install the drain hose Do you install the Improper installation properly. drain hose properly? Is the foreign matter Remove the foreign mat- Malfunction of drainage accumulated inside ter from the pump hous- THE WASHER by the foreign matter the pump housing? DOES NOT...

  • Page 32: Concerning Spinning

    Concerning Spinning PROBLEM CHECK POINT CAUSE SOLUTION Is the lid open? Close the lid. Safety switch is defec- Change the safety Does the safety switch tive. switch. operate normally? Is the connector of Connect the connector Improper connection of P.C.B ASS‘Y connected properly.

  • Page 33: Concerning Operation

    Concerning Operation PROBLEM CHECK POINT CAUSE SOLUTION Is the plug connect-ed Connect the plug. to electric outlet? THE INDICA- Is Fuse opended? Change Fuse LAMPS(L.E.D) Is the condition of DO NOT LIGHT Change P.C.B ASS’Y. Power button is defective power button good? UP WHEN THE POWER BUT- TON IS...

  • Page 34: Presentation Of The P.c.b Ass'y

    10. PRESENTATION OF THE P.C.B ASS’Y Concerning Error Message MESSAGE CAUSE SOLUTION Install drain hose properly. Improper installation of drain hose. Remove foreign matter from drain hose. The drain hose is blocked up by foreign matter. Change drain motor. Drain motor is inferior. Open the water tap.

  • Page 35: Appendix

    APPENDIX Wiring Diagram [non-pump, single valve, bubble] WIRING DIAGRAM...
  • Page 36 [non-pump, single valve, non-bubble] WIRING DIAGRAM...
  • Page 37 [non-pump, single valve, bubble] WIRING DIAGRAM...
  • Page 38 [non-pump, non-bubble] WIRING DIAGRAM...
  • Page 39 [pump, single valve, bubble] WIRING DIAGRAM...
  • Page 40 [pump, bubble] WIRING DIAGRAM...
  • Page 41 [pump, non-bubble] WIRING DIAGRAM...

  • Page 42: Parts Diagram & Parts List

    Parts Diagram PARTS DIAGRAM...
  • Page 43 PARTS DIAGRAM...
  • Page 44  Caution: In this Service 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) Parts List PART NAME PART CODE SPECIFICATION...
  • Page 45  Caution: In this Service 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) PART NAME PART CODE SPECIFICATION REMARK...
  • Page 46 PARTS DIAGRAM...
  • Page 47  Caution: In this Service 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) Parts List PART NAME PART CODE SPECIFICATION...
  • Page 48 PARTS DIAGRAM...
  • Page 49  Caution: In this Service 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) Parts List PART NAME PART CODE SPECIFICATION...
  • Page 50 PARTS DIAGRAM...
  • Page 51  Caution: In this Service 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) Parts List PART NAME PART CODE SPECIFICATION...

  • Page 52: Circuit Diagram

    Circuit Diagram CIRCUIT DIAGRAM...
  • Page 53 DAEWOO ELECTRONICS CORP. 686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O. BOX 8003 SEOUL, KOREA TELEX: DWELEC K28177-8 CABLE: “DAEWOOELEC” PRINTED DATE: Oct. 2003 S/M No. : WF770SE001...

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Dwf-820

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