Samsung WD8 K64 Series Service Manual
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Samsung WD8 K64 Series Service Manual

Washing machine drum type
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SERVICE
WASHING MACHINE (DRUM)
WD6500K_7-8-9-11kg_1400rpm-SM.indb 1
WASHING MACHINE
DRUM TYPE
Basic Model
:
WD80J6410AW/EU
(WD6000J)
Model Name
:
WD8*K64****
WD9*K64****
WD10K64****
WD11K64****
(WD6500K)
Model Code
:
WD7*K6*****/X
WD8*K6*****/X
WD9*K6*****/X
WD10K6*****/X
WD11K6*****/X
(WD6500K)
Manual
1. Safety Instructions
2. Features and Specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagram
6. Wiring Diagram
7. Reference
CONTENTS
2018/11/9 9:52:43

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Summary of Contents for Samsung WD8 K64 Series

  • Page 1 WASHING MACHINE DRUM TYPE Basic Model WD80J6410AW/EU (WD6000J) Model Name WD8*K64**** WD9*K64**** WD10K64**** WD11K64**** (WD6500K) Model Code WD7*K6*****/X WD8*K6*****/X WD9*K6*****/X WD10K6*****/X WD11K6*****/X (WD6500K) SERVICE Manual WASHING MACHINE (DRUM) CONTENTS 1. Safety Instructions 2. Features and Specifications 3. Disassembly and Reassembly 4. Troubleshooting 5. PCB Diagram 6.

  • Page 2: Table Of Contents

    CoNTENTS 1. Safety instructions ..............1 1-1.

  • Page 3: Safety Instructions

    1. SAfETy INSTRUCTIoNS 1-1. SAfETy INSTRUCTIoNS foR SERvICE ENgINEERS ► Make sure to observe the following instructions to operate the product correctly and safely and prevent possible accidents and hazards while servicing. ► Two types of safety symbols, Warning and Caution, are used in the safety instructions. Hazards or unsafe practices that may result in severe personal injury or death. WARNINg Hazards or unsafe practices that may result in minor personal injury or property damage. CAUTIoN WARNINg BEfoRE SERvICINg...
  • Page 4 WARNINg WHILE SERvICINg • Check if the power plug and outlet are damaged, flattened, cut or otherwise degraded. √ If faulty, replace it immediately. Failing to do so may result in electric shock or fire. • Completely remove any dust or foreign material from the housing, wiring and connection parts. √ This will prevent a risk of fire due to tracking and shorts in advance. • When connecting wires, make sure to connect them using the relevant connectors and check that they are completely connected. √ If tape is used instead of the connectors, it may cause fire due to tracking. • Make sure to discharge the PBA power terminals before starting the service. √ Failing to do so may result in a high voltage electric shock. • When replacing the heater, make sure to fasten the nut after ensuring that it is inserted into the bracket-heater. √ If not inserted into the bracket-heater, it touches the drum and causes noise and electric leakage. WARNINg AfTER SERvICINg • Check the wiring. √ Ensure that no wire touches a rotating part or a sharpened part of the electrical harness. • Check for any water leakage. √ Perform a test run for the washing machine using the standard course and check whether there is any water leakage through the floor section or the pipes. • Do not allow consumers to repair or service any part of the washing machine themselves. √ This may result in personal injury and shorten the product lifetime.
  • Page 5 CAUTIoN BEfoRE SERvICINg • Do not sprinkle water onto the washing machine directly when cleaning it. √ This may result in electric shock or fire, and may shorten the product lifetime. • Do not place any containers with water on the washing machine. √ If the water is spilled, it may result in electric shock or fire. This will also shorten the product lifetime. • Do not install the washing machine in a location exposed to snow or rain. √ This may result in electric shock or fire, and shorten the product lifetime. • Do not press a control button using a sharp tool or object. √ This may result in electric shock or damage to the product. CAUTIoN WHILE SERvICINg • When wiring a harness, make sure to seal it completely so no liquid can enter. √ Make sure that they do not break when force is exerted. • Check if there is any residue that shows that liquid entered the electric parts or harnesses. √ If any liquid has entered into a part, replace it or completely remove any remaining moisture from it. • If you need to place the washing machine on its back for servicing purposes, place a support(s) on the floor and lay it down carefully so its side is on the floor. √ Do not lay it down on its front. This may result in the inside tub damaging parts. Safety Instructions _ 3 WD6500K_7-8-9-11kg_1400rpm-SM.indb 3 2018/11/9 9:52:44...
  • Page 6 CAUTIoN AfTER SERvICINg • Check the assembled status of the parts. √ They must be the same as before servicing. • Check the insulation resistance. √ Disconnect the power cord from the power outlet and measure the insulation resistance between the power plug and the grounding wire of the washing machine. The value must be greater than 10MΩ when measured with a 500V DC Megger. • Check whether the washing machine is level in relationship with the floor. Check whether it is installed firmly on the floor. √ Vibrations can shorten the lifetime of the product. 4 _ Safety Instructions WD6500K_7-8-9-11kg_1400rpm-SM.indb 4 2018/11/9 9:52:44...

  • Page 7: Features And Specifications

    2. fEATURES AND SPECIfICATIoNS 2-1. fEATURES ■ CoMMoN fEATURES features Description Drying • Enjoy convenient non stop washing and drying managing. - 4 different special drying programs can be selected to perform the whole wash cycle including the drying cycle using one button. - Cupboard(standard program), Low temp drying, Iron,Time Drying (30min ~ 270mins). - Those drying programs also can be operated independently of washing programs. Diamond Drum • The washing performance has increased but potential damage to the washing has been minimized. (The size of the holes on the diamond drum has been reduced for minimizing damage to the washing.) - The embossed wall of the drum serves as a washboard, dramatically increasing the washing performance compared with existing drum washing machines, which use the power of the difference in elevation only. - The size of holes has been reduced drastically, maintaining the optimal wash performance (Washing Cost 1.0) while saving on water and electricity required for washing. - The structure of the holes on the diamond drum has been changed minimizing potential damage to the washing since it is difficult for strands to enter the holes.
  • Page 8 ■ oPTIoNAL fEATURES ► The features below depend on the model. features Description Air Refresh System • Sterilization/Deodorization/Removal of Ticks without Water Washing (Air Washing Using Air and Heating) - Destroying bacteria and ticks without the use of water - Removing the sweat and dirt odors - Maintaining the shape and color of the washing without dry-cleaning • Washing with air. - Removing odors by heating, keeping the washing as new. - Washing with air conveniently, compared with dry-cleaning. The goal of deodorization is 60 percent. (40-minute cycle) • Washing one or two shirts in 30 minutes - If a piece of clothes is not completely dry when it is humid, the machine can dry it within 30 minutes • Preventing bio-film caused by humidity from occurring - You do not need to worry about the humidity inside the drum. - The drum is dried regularly, preventing bio-film. 6 _ Features and Specifications WD6500K_7-8-9-11kg_1400rpm-SM.indb 6 2018/11/9 9:52:45...
  • Page 9 ► The features below depend on the model. features Description volt Control • The solution for more Durable and Reliable Washing Machine - Although you may not see the direct problems of power surges that run through your electronic devices, a real danger in sudden surges of voltage does exist and this definitely affects your washing machine. This is especially true for machines that require a lot of energy. Samsung’s Volt Control guarantees that your washing machine works safely even with voltage deviations of ±25%. • What does the “Volt Control” mean? - This is technology that allows to safe a washing machine from high shock and even lower voltage. There is an additional protective measure in a washing machine for your precious clothes. It constantly controls washing cycle in a fluctuated situation and re-start automatically when the standard voltage flows back again. 400v 350v 300v 250v 220v 200v 180v 165v 400v 350v 300v 250v 220v 200v 180v 165v Features and Specifications _ 7 WD6500K_7-8-9-11kg_1400rpm-SM.indb 7...
  • Page 10 ► The features below depend on the model. features Description Bubble Wash ● Bubble Cushion - Eco Bubble technology activates the detergent much earlier and faster in the wash cycle by use of a Bubble Generator, rapidly mixing a small amount of water with air and detergent (works with powder, tabs or liquid detergents). This creates a foam cushion in the drum ahead of introducing the main water intake. ● Super energy saving - the detergent infused bubbles penetrate the fabrics much faster and efficiently than for a conventional wash system, delivering a cleaner wash performance especially for colder temperature cycles. The lower the water temperature of the cycle, the greater the impact of using Eco Bubble versus conventional systems, this allowing more use of colder wash cycles and helping to save energy beyond the A+++ energy rating of this appliance. ● No detergent remainning - the detergent disslove completely in a very short time while wash begin by bubble wash technology,so don’t afraid of detergent remainnin. 8 _ Features and Specifications WD6500K_7-8-9-11kg_1400rpm-SM.indb 8 2018/11/9 9:52:46...

  • Page 11: Specifications

    2-2. SPECIfICATIoNS WD85K6***** WD75K6***** Model WD11K6***** WD10K6***** WD9*K6***** WD8*K6***** Wash Type FRONT LOADING TYPE W 600 mm X D 550 Dimension W 600 mm X D 650 mm X H 850 mm mm X H 850 mm Water Pressure 50 kPa ~ 800 kPa Water volume 63 L Weight 71 kg 72 kg WD9*K6***** WD85K6***** WD8*K6***** WD75K6***** Wash & Spin Capacity 11.5 kg 10.0 kg 9.0 kg 8.5 kg 8.0 kg...

  • Page 12: Comparing Specifications With Existing Models

    2-3. CoMPARINg SPECIfICATIoNS WITH EXISTINg MoDELS (★) : Functions may be different depending on the model. Project WD6500K WD6000J Model Name WD8*K6***** WD75K6***** WD11K6***** WD10K6***** WD90K6***** WD85K6***** WD80J6410AW/EU Image Capacity 8.0 kg 7.5 kg 11.5 kg 10.0 kg 9.0 kg 8.5 kg 8.0 kg Dry Capacity 6.0 kg 7.0 kg 6.0 kg 6.0 kg 6.0 kg 6.0 kg Water Volume 58 L 63 L 58 L Max rpm 1400 1400...

  • Page 13: Options Specifications

    2-4. oPTIoNS SPECIfICATIoNS Item Code Remarks FASTENER-BOLT DC60-00104A Default 4(8kg model) For specific CAP-FIXER DC67-00307A models only 5(9kg model) For specific CAP-FIXER DC67-00208B models only For specific ASSY HOSE WATER DC97-16921A ★ models only HOSE-WATER For specific DC62-00079A ★ (AQUA-STOP) models only HOSE-HANGER DC62-10278A Default GUIDE LIQUID DC61-03510A Default MANUAL USERS DC68-03745* series Default Note • (★) is supplied for specific models only among those without water supply hoses.

  • Page 14: Disassembly And Reassembly

    3. DISASSEMBLy AND REASSEMBLy 3-1. TooLS foR DISASSEMBLy AND REASSEMBLy Tool Type Remarks Heater(1),Tub(12), Fixer screw(5), Motor(2), 10mm Balance (9) shock Absorber (2 holes each in left/right), 13mm Box driver 19mm Damper(2), Damper(friction 2) Pulley(1) 10mm Double- Replaced by box driver 13mm ended- spanner 19mm A Tool for protecting empty turning of bolt or abrasion from using box driver Vice plies For disassembly of Spin drum A Tool for protecting empty turning of bolt or Others abrasion from using box driver (screwdriver, nipper, For disassembly of Spin drum long nose pliers) Tools for spring Disassembly and reassembly 12 _Disassembly and Reassembly WD6500K_7-8-9-11kg_1400rpm-SM.indb 12 2018/11/9 9:52:48...

  • Page 15: 3-2.Standard Disassembly Drawings

    3-2.STANDARD DISASSEMBLy DRAWINgS This is a standard disassembly diagram and may differ from the actual product. Use this material as a reference when disassembling and reassembling the product. Part name Description Figure ASSY COVER 1. Remove the two screws holding the Top Cover at the back of the unit. 2. Remove the top-cover by pulling it back. 3. Then, the Water (Pressure) NOISE FILTER VALVE WATER Sensor, Noise Filter and Water Valve can be replaced. WATER (PRESSURE) SENSOR Disassembly and Reassembly_13 WD6500K_7-8-9-11kg_1400rpm-SM.indb 13 2018/11/9 9:52:49...
  • Page 16 Part name Description Figure ASSY PANEL 1. Remove the 2 screws holding CONTROL the front operating panel. 2. Remove the two screw at the top of the assy panel control. 3. Hold the ASSY-PANEL CONTROL while pulling it outwards and release the hook to remove it. 4. Disconnect the terminals connected to the PCB by hand. 5. Press the Clasp ① and Clasp ② at the same time, Lift pcb up, then take it out from left. 14 _Disassembly and Reassembly WD6500K_7-8-9-11kg_1400rpm-SM.indb 14 2018/11/9 9:52:54...
  • Page 17 Part name Description Figure ASSY 1. Remove these screws fixing the HOUSING Assy-Housing Drawer. DRAWER 2. Disconnect the terminals from the Assy-Housing Drawer(3 point). 3. Remove the Hose (2 Point). 4. Remove the 2 screws holding the water supply valve. Disassembly and Reassembly_15 WD6500K_7-8-9-11kg_1400rpm-SM.indb 15 2018/11/9 9:52:57...
  • Page 18 Part name Description Figure WATER LE- 1. Separate the Assy Top-Cover. VER SENSOR WATER VALVE NOISE FILTER SENSOR PRESSURE 2. Disconnect the wire between the PRESSURE HOSE and the water level sensor for repair / replacement. DOOR HINGE 1. Remove the 2 screws holding the Door Hinge and separate the door. 2. Seperate the door and Pull the 2nd DOOR wire harness from this hole. 16 _Disassembly and Reassembly WD6500K_7-8-9-11kg_1400rpm-SM.indb 16 2018/11/9 9:53:00...
  • Page 19 Part Description Figure 1. Open the Add door. 2. Remove Inlays. 3. Remove 4 screws. ASSY DOOR (Cont.) 4. Use (-) driver, separate the cover door. 5. Remove 2 screws and then separate the latch. Disassembly and Reassembly_17 WD6500K_7-8-9-11kg_1400rpm-SM.indb 17 2018/11/9 9:53:01...
  • Page 20 Part Description Figure 6. Remove 5 screws and then separate the support hinge. ASSY DOOR (Cont.) 7. Remove 1 screw, separate Add door. 18 _Disassembly and Reassembly WD6500K_7-8-9-11kg_1400rpm-SM.indb 18 2018/11/9 9:53:01...
  • Page 21 Part name Description Figure DOOR LOCK 1. Open the Door. Remove the Wire Diaphragm and remove it from The Front Frame. For easier disassembly, remove the spring from the lower part of the Diaphragm with a (-) screwdriver. Since the Diaphragm can be damaged when removing it, remove it slowly in one direction. 2. Remove the two screws. 3. Remove the screw holding the Door-Lock S/W. Remove the Door-Lock S/W. Remove the connection wire. (Remove the connector after releasing it by pressing the catch.) Disassembly and Reassembly_19 WD6500K_7-8-9-11kg_1400rpm-SM.indb 19 2018/11/9 9:53:03...
  • Page 22 Part name Description Figure FRAME 1. Separate the Wire-Diaphragm FRONT from the Front-Frame and remove the Diaphragm. 2. Remove the two screws holding the FRAME-FRONT. 3. Remove the three screws holding the bottom of the FRAME-FRONT. 4. Disconnect the terminal for the DOORLOCK switch. 5. The DOOR-DIAPHRAGM, PUMP, SHOCKDAMPER and DOOR LOCK switch. 20 _Disassembly and Reassembly WD6500K_7-8-9-11kg_1400rpm-SM.indb 20 2018/11/9 9:53:07...
  • Page 23 Part name Description Figure 1. Gently press the top area fo the filte cover BUBBLE PUMP to open. AND DRAIN PUMP Then seperate frame front. 2. Remove the remaining water through the drainage hose. Place a bowl under the drainage hose, or the remaining water may fl ow out. 3. Separate the Drain Filter by turning it counterclockwise Since the remaining water may flow out, place a bowl underneath it when separat- ing the fi lter. 4. Remove the 2 screws holding the Drain Pump. 5. Disconnect the terminal of wire. Disassembly and Reassembly_21 WD6500K_7-8-9-11kg_1400rpm-SM.indb 21 2018/11/9 9:53:08...
  • Page 24 Part name Description Figure BUBBLE PUMP AND 6. Release all band ring to removal hose DRAIN PUMP except for hose drain. 7. Push the pump inwards slightly and remove it. 8. Release the clamper hose which con- nected pump and hose drain, then separate it. Check Points for Troubleshooting ★ 1. Separate the Drain Filter and check if any alien substances are in- side the pump (e.g. coins, buttons .., etc.) → Remove these if found. 2. Check if the wire driving the pump has come loose → Take the rel- evant countermeasure if necessary. 3. When water leaks, check the assembly status of the Clamp Hose, and Cap Drain → Take the relevant countermeasure if necessary. Turn the filter counterclockwise to remove the remaining water. 1. Separate the BAND RING, HOSE-TUB and then remove the HOSE hose-tub. 22 _Disassembly and Reassembly WD6500K_7-8-9-11kg_1400rpm-SM.indb 22 2018/11/9 9:53:09...
  • Page 25 Part name Description Figure Removing Proceed with these steps after the Duct removing the top cover and control panel. 1. Remove this screw connecting Frame-plate(U) and Housing- drawer 2. Remove these 6 screws fixing the Frame-plate(U) 3. Remove the four housings (Red) for the the rmostat, fan motor and thermistor. Disassembly and Reassembly_23 WD6500K_7-8-9-11kg_1400rpm-SM.indb 23 2018/11/9 9:53:13...
  • Page 26 Part name Description Figure Removing 4. Release the Joint-diaphragm and the Duct remove the Diaphragm. 5. Remove these two screws. 6. Remove the Assy-duct scroll. Removing 1. Remove the screws, and separate the Duct the upper-plate and Diaphragm to (Replacing disassemble the Duct. the Dry Motor) 2. Remove the dry motor assembled with the cover-housing (U/R) and remove M10, as shown in the figure. 24 _Disassembly and Reassembly WD6500K_7-8-9-11kg_1400rpm-SM.indb 24 2018/11/9 9:53:17...
  • Page 27 Part name Description Figure Removing 3. Remove the screw. the Duct (Replacing the Dry Motor) √Check Points for Troubleshooting 1. Revolve the dry motor manually and check whether Spin the dry motor manually and check that it rotates freely. 2. Measure the internal resistance (between the white and blue wire termi- nals) → several Ω: short-circuited, ∞: disconnected Removing 1.Remove the connector. Remove the jacks connected to the Duct the thermostat and remove the (THERMO- four (4) screws, as shown in the STAT) figure. √Check Points for Troubleshooting Measure the resistance between both ends of the thermostat: 0 Ω ● → If th e stud is raised due to overheating and it is pressed, it will be re- turned to the original position with a ‘snapping’ sound. Removing 1. Remove the two (2) screws the Duct connected to the dry duct and (THERMIS- remove the white thermistor. TOR) Disassembly and Reassembly_25 WD6500K_7-8-9-11kg_1400rpm-SM.indb 25 2018/11/9 9:53:18...
  • Page 28 Part name Description Figure Removing 1. Remove the dry duct. Remove the the Duct screws as shown in the photo and (heater) remove the Assy S.duct-scroll. 26 _Disassembly and Reassembly WD6500K_7-8-9-11kg_1400rpm-SM.indb 26 2018/11/9 9:53:20...
  • Page 29 Part name Description Figure Condensa- 1.Remove the the clamp hose as picture marked. 2.Remove the screw. 3.Remove the clamp hose. Disassembly and Reassembly_27 WD6500K_7-8-9-11kg_1400rpm-SM.indb 27 2018/11/9 9:53:22...
  • Page 30 Part name Description Figure WASH 1. Separate the Back Cover. HEATER 2. Separate the Connection Hous- ing (4). 3. Remove the nut holding the heater and separate the Heat- 4. Remove the Heater from the Tub. Caution Make sure to insert the Heater into the correct position of the bracket inside the Tub when reassembling it. Otherwise, there is a danger of a fire. Make sure to push it inwards until the packing part comes into the Tub completely when reassembling it so that the packing part is completely stuck to the Tub. Fasten the holding nut with a force of 5Kgf/cm2. If the nut is not fastened properly, there is a danger of water leaking. 28 _Disassembly and Reassembly WD6500K_7-8-9-11kg_1400rpm-SM.indb 28 2018/11/9 9:53:25...
  • Page 31 Part name Description Figure 1.Unfasten the 4 screws that hold MOTOR the back cover in place. Remove the back cover by sliding it down. 2. After removing the back cover, unfasten the M19 nut that holds the motor in place. Do not try to unfasten the nut by inserting a screw driver into the motor. This may cause a motor malfunction. 3. Remove the M19 nut washer and then remove the rotor. 4. Unfasten the six (6) M10 screws. Remove the assy bracket motor. Remove the stator. 5. Remove the motor wire and hall MoToR WIRE sensor while holding down the navel of the housing. HALL SENSoR √Check Points for Troubleshooting 1. Check whether there are any foreign substances between the rotor and the stator. 2. Check whether the motor power wires (blue, while, red) are connected correctly. 3. Check whether the hall sensor wire is connected correctly. - Connect the motor power wires in the order blue, white and red, starting from the furthest right. Check whether each voltage between blue and white, white and red, red and blue is 15Ω. Disassembly and Reassembly_29 WD6500K_7-8-9-11kg_1400rpm-SM.indb 29 2018/11/9 9:53:26...
  • Page 32 Part name Description Figure MOTOR STAToR RoToR 6. To remove the hall sensor, unfasten the two (2) screws holding both the stator and hall sensor in place. 7. Remove the hall sensor by exerting some force to the ▲ part. HALL SENSoR REMovED √ Check Points for Troubleshooting A “3E” error occurs when the tub is driven in a wash or rinse cycle but ● there is no problem with the stator. → Replace the hall sensor. 30 _Disassembly and Reassembly WD6500K_7-8-9-11kg_1400rpm-SM.indb 30 2018/11/9 9:53:27...
  • Page 33 Part name Description Figure WEIGHT 1. Separate the Back Cover. BLANCE 2. Separate the WEIGHT- BALANCE(F). For disassembly, please make sure assembled the BRACKET- NUT into the TUB first. Make sure the hole and hole respond to each other correctly. There is no ringt and left direc- tion for WEIGHT-BALANCE(F). Disassembly and Reassembly_31 WD6500K_7-8-9-11kg_1400rpm-SM.indb 31 2018/11/9 9:53:28...
  • Page 34 Part name Description Figure SPRING 1. Insert the vertical hook of SPRING- HANGER HANGER into the GUIDE-SPRING on the ASSY-FRAME. 2. Drag the SPRING-HANGER to insert the elliptical hook into the hole that’s at the side of the ASSY-TUB as the left picture show. 3. Make sure the SPRING-HANGER’s two hooks are assenbled right. 32 _Disassembly and Reassembly WD6500K_7-8-9-11kg_1400rpm-SM.indb 32 2018/11/9 9:53:28...
  • Page 35 Part name Description Figure 1. Remove the 14 screws holding the ASSY TUB tub. 2. Separate the ASSY-BOLT on the BACK-TUB. 3. Separate the PULLEY. 4. Separate the ASSY DRUM. 1. Assemble packing-tub’s one side of PACKING “凹” to TUB-BACK use two hands. Disassembly and Reassembly_33 WD6500K_7-8-9-11kg_1400rpm-SM.indb 33 2018/11/9 9:53:30...
  • Page 36 Part name Description Figure 1. Assemble the OIL-SEAL in the OIL-SEAL TUB-BACK. 2. Press the OIL-SEAL gently and turn it back and forth. ASSY-DRUM 1. Remove the WASHER-WAVE from the SHAFT. 2. Remove the three screws holding the ASSY FLANGE SHAFT. 34 _Disassembly and Reassembly WD6500K_7-8-9-11kg_1400rpm-SM.indb 34 2018/11/9 9:53:31...

  • Page 37: Troubleshooting

    4. TRoUBLESHooTINg 4-1. CHECK MoDES ► This is a washer integrated check mode. for detailed information, refer to the general repair scripts. Check Check Type Causes Remarks Mode - The part of the hose where the water level sensor is located is damaged (punctured). - The hose is clogged with foreign material. - The hose is folded. - Too much lubricant has been applied to the insertion part of the Water Level air hose. Sensor - Hose engagement check. (disengaged) - Part fault. (Faulty internal soldering)
  • Page 38 Check Check Type Causes Remarks Mode - Check the consumer’s power conditions. : Make sure to check the operating voltage. Connect a tester to the internal power terminals during the Boil or Dry operations and observe the washing machine’s operation carefully. Power Check 9C1,9C2 : Check the voltages. (A check occurs when under or over voltage is supplied.) : Check whether a plug receptacle is used. When the connecting wire is 1m, a momentary low voltage may drop up to 10 V - Main PBA fault (sometimes) - The signals between the sub and main PBAs are not sensed because of commuication check. - Check the connector connections between the sub and main PBAs carefully. → Check for incorrect or loose connections, etc. - Remove the sub PBA C/Panel and check for any faulty soldering. - The diagnosis of the I/O Board communication check. - The signals between The DR Module and main PBAs are not sensed because of commuication check. - Check The connector connections between The DR Module and main PBAs carefully.
  • Page 39 Check Check Type Causes Remarks Mode - A switch contact check because of a deformation of the door When the door is not hook. opened after the door open operation. - When the door is pulled by force. When the door is not - This occurs in the Boil wash because the door is pushed due locked after the door to a pressure difference from internal temperature changes. close operation. - The door lock switch terminal is connected incorrectly. Door Check - The door lock switch terminal is broken. - This occurs intermittently because of an electric wire leakage - Main PCB fault. - This occurs if the Power switch is turned on/off continually and too much heat is generated (This check is difficult to be reproduced.) - The washing heater is short-circuited or has a wire disconnected. - The washing heater in the tub has a check. (Contact check, temperature sensor fault) If the heater has no check, this occurs - If the water level sensor operates without water because water...
  • Page 40 Check Check Type Causes Remarks Mode - The washing heater sensor in the tub has a check. (Contact check or temperature sensor fault) - The connector is connected incorrectly or is disconnected. Heater sensor fault - If the water level sensor operates without water because the : W hen the connector water is frozen or for any other reason and the temperature is connected sensor engaged at the bottom to prevent overheating for the incorrectly or has a washing heater detects a temperature of 100 to 150 ˚C, the wire disconnected or Temperature washing machine turns the input power off. contact check Sensor Check - The drying heater sensor in the tub has a check. (Contact check or temperature sensor fault) - IPM temperature is abnormally high. - As laundry causes this check, check the laundry. Unbalance - Find the reason for the unbalance and solve it as directed in Check the user manual. - This occurs when too much foaming is detected. It is also displayed while foaming is removed. When the removal is finished, the normal cycle proceeds.

  • Page 41: Corrective Actions For Each Check Code

    4-2. CoRRECTIvE ACTIoNS foR EACH CHECK CoDE Troubleshooting _ 39 WD6500K_7-8-9-11kg_1400rpm-SM.indb 39 2018/11/9 9:53:31...
  • Page 42 40 _ Troubleshooting WD6500K_7-8-9-11kg_1400rpm-SM.indb 40 2018/11/9 9:53:32...
  • Page 43 Troubleshooting _ 41 WD6500K_7-8-9-11kg_1400rpm-SM.indb 41 2018/11/9 9:53:32...
  • Page 44 42 _ Troubleshooting WD6500K_7-8-9-11kg_1400rpm-SM.indb 42 2018/11/9 9:53:32...
  • Page 45 Troubleshooting _ 43 WD6500K_7-8-9-11kg_1400rpm-SM.indb 43 2018/11/9 9:53:32...

  • Page 46: Pcb Diagram

    5. PCB DIAgRAM 5-1. MAIN PCB (DD) Location Part No. function Description Location Part No. function Description CN11 PBA Power Supply Supply 220V of AC power. Smart dispenser Connection Port Supply power to the dispenser PBA and provides a communications function Be Supplied PBA power when the Power button is Main Relay Supply power to the sensor and provides a com- pressed. Sensor Connection Port minications functuion Dry Heater Relay The switch for the Dry Heater power Supply power to the LCD PBA and provides a com- LCD PBA Connection Port munications function Washing Heater Relay The switch for the Washing Heater power Flash Writing Connection Port Provides writing Flash memory Fan motor Connection Port Supply the 3-phase drive voltage for the FAN Motor...

  • Page 47: Circuit Diagrams Of Main Parts For Main Pcb (Dd)

    5-2. CIRCUIT DIAgRAMS of MAIN PARTS foR MAIN PCB (DD) ► CN6 1. Ground 2. Door SW signal ► CN2 3. Leakage signal 1. Fan motor signal(U) ► CN9 4. DRY_AIR_TEMP signal 1. Power 3.3V 2. Empty pin 5. DRY_CON_TEMP signal 3. Fan motor signal(V) 2. Communications signal 6. Water TEMP signal 3. Communications signal 4.

  • Page 48: Inverter Pcb

    5-3. INvERTER PCB Location Part No. function Description Programe writting Programe writting Communication Communicating PCB MAIN and PCB inverter Hall Sensor Sensing Hall signal MOTOR Output Motor 3-Phase Putput AC Power Supply AC Power 46 _ PCB Diagram WD6500K_7-8-9-11kg_1400rpm-SM.indb 46 2018/11/9 9:53:37...

  • Page 49: Circuit Diagrams Of Main Parts(Inverter Pcb)

    5-4. CIRCUIT DIAgRAMS of MAIN PARTS(INvERTER PCB) ► CN2 1. 5V 2. HALL A sensor signal 3. HALL B sensor signal ► CN6 4. Ground 1. Motor signal(U) 2. Motor signal(V) 3. Motor signal(W) ► CN1 1. MAIN Communications signal 2. MAIN Communications signal 3. Ground ► CN5 1. L line 2. N line PCB Diagram _ 47 WD6500K_7-8-9-11kg_1400rpm-SM.indb 47 2018/11/9 9:53:37...

  • Page 50: Sub Pcb

    5-5. SUB PCB Location Part No. function Description BZ601 Buzzer Circuit Generates sound when the menu key and encoder-key are operated or when the menu is closed. CN803 Main and Sub PCB Connection Port Main and sub PBA communication. CN201 Program Writing Attach the connector for writing the program when an upgrade or change of the program is required. DSP701 Display Displays the remaining time for the selected cycle,Displays the menu and progress status. CN503 Touch connector connect to touch sensor 48 _ PCB Diagram WD6500K_7-8-9-11kg_1400rpm-SM.indb 48 2018/11/9 9:53:38...

  • Page 51: Detailed Descriptions Of Contact Terminals For Sub Pcb

    5-6. DETAILED DESCRIPTIoNS of CoNTACT TERMINALS foR SUB PCB ► CN201 ► DSP701 Programm writing Display ► BZ601 ► CN803 ► CN503 Buzzer Circuit Main and sub PCB communication Touch connector PCB Diagram _ 49 WD6500K_7-8-9-11kg_1400rpm-SM.indb 49 2018/11/9 9:53:38...

  • Page 52: Wiring Diagram

    7. REfERENCE 7-1. WD6500K PRoJECT NAME MoDEL NAME IN THE MARKET BoM MoDEL CoDE ► Drum Machine Classification ► Color Code 3:Frame ► Capacity ► RPM Notation ► Buyer Code ► Color Code 1:Display Color according to type: W: WHITE 90: 9Kg 50: 5Kg 0: 1000rpm WW: Washer Front Loading 0: BLACK S: SILVER 80: 8Kg 40: 4Kg 2: 1200rpm WD: Washer & Dryer 3: SILVER X: INOX...

  • Page 53: Wiring Diagram

    6. WIRINg DIAgRAM 6-1. WIRINg DIAgRAM ■ Reference information BLACK BLUE GREEN GRAY NATURAL ORANGE PINK SKYBLU SKYBLUE VIOLET WHITE YELLOW Wiring diagram_51 WD6500K_7-8-9-11kg_1400rpm-SM.indb 51 2018/11/9 9:53:38...
  • Page 54 This Service Manual is a property of Samsung Electronics Co.,Ltd. © 2015 Samsung Electronics Co.,Ltd. All Any unauthorized use of Manual can be punished under applicable rights reserved. International and/or domestic law. 27 May. 2015 WD6500K_7-8-9-11kg_1400rpm-SM.indb 52 2018/11/9 9:53:38...

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