Samsung WF7500K Service Manual
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Samsung WF7500K Service Manual

Samsung WF7500K Service Manual

Dual loading washer
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SERVICE
DUAL LOADING WASHER
DUAL LOADING WASHER
Basic Model
: WF50K7500AV/A2
(WF7500K)
Model Name : WV60M9900AV
(WV9900M)
Model Code
: WV60M9900AV/A5
(WV9900M)
WV60A9900AV/A5
(WV9900A)
Manual
1. Safety Instructions
2. Features and Specification
3. Disassembly and Reassembly
4. Troubleshooting
C U STO M ER R EP AIR GU IDE
CONTENTS

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  • Page 1 DUAL LOADING WASHER Basic Model : WF50K7500AV/A2 (WF7500K) Model Name : WV60M9900AV (WV9900M) Model Code : WV60M9900AV/A5 (WV9900M) WV60A9900AV/A5 (WV9900A) SERVICE Manual C U STO M ER R EP AIR GU IDE DUAL LOADING WASHER CONTENTS 1. Safety Instructions 2. Features and Specification 3.

  • Page 2: Table Of Contents

    This document can not be used without Samsung's authorization. CONTENTS 1. Safety instructions ................. . 1 1-1.

  • Page 3: Safety Instructions

    This document can not be used without Samsung's authorization. 1. SAFETY INSTRUCTIONS 1-1. SAFETY INSTRUCTIONS FOR SERVICE ENGINEERS ▶ Be sure to observe the following instructions to operate the product correctly and safely to 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.

  • Page 4: Before Servicing

    This document can not be used without Samsung's authorization. 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.
  • Page 5 This document can not be used without Samsung's authorization. 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 electrical hazard. • When connecting wires, make sure to connect them using the relevant connectors and check that they are completely properly. √ 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.
  • Page 6 This document can not be used without Samsung's authorization. CAUTION AFTER SERVICING • Check the assembled status of the parts. √ Now is a good time to inspect your work. Review all connections and wiring, including mounting hardware. • 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 the floor with respect to the original position of the washing machine prior to service. By doing this now will reduce for the need of customer dissatisfaction and redo call. √ Vibrations can shorten the lifetime of the product. 4 _ Safety Instructions...

  • Page 7: Features And Specifications

    This document can not be used without Samsung's authorization. 2. FEATURES AND SPECIFICATIONS 2-1. FEATURES Features Description Flex Wash • Two washers in lets you wash separate loads at the same time, or independently. Smart Dial • Provides personalized, intuitive and intelligent control for a more effective and hassle-free washing experience. Super speed • Wash a full load in as little as 30 minutes. Clean Guard • Guards the machine against the deterioration caused by microotganisms and prevents bacterial odors. Features and Specifications _ 5...

  • Page 8: Specifications

    This document can not be used without Samsung's authorization. 2-2. SPECIFICATIONS Type Dual loading washer A. Height - top door closed 46.9 in. (1192 mm) B. Height - top door opened 61 in. (1550 mm) Dimensions C. Width 27 in. (686 mm) (inches (mm)) D. Depth with door open 54.6 in. (1386 mm)

  • Page 9: Comparing Specifications With Existing Models

    This document can not be used without Samsung's authorization. 2-3. COMPARING SPECIFICATIONS WITH EXISTING MODELS Project WF7500K WV9900M WV9900A WV60M9900AV/A5 WV60A9900AV/A5 Model Name WF50K7500A* Upper washer Lower washer Upper washer Lower washer Image Washing Capacity (cu.ft./ DOE) 1.0 + 5.0 1.0 + 5.0...

  • Page 10: Options Specifications

    This document can not be used without Samsung's authorization. 2-4. OPTIONS SPECIFICATIONS Item Code Remarks BOLT-SPANER(Wrench) DC60-40146A Default DC68-03768A MANUAL USER Default DC68-03788A CAP-FIXER DC67-00307A Default HOSE-HANGER DC62-10278A Default CABLE TIE 6501-000121 Default CASE-DETERGENT DC61-04468A Default Note • Customer can purchase additional water supply and drain hoses from a service center. • The spanner(wrench), water supply and drain hoses are not supplied. Both the water supply and drain hoses are supplied during the installation.

  • Page 11: Disassembly And Reassembly

    This document can not be used without Samsung's authorization. 3. DISASSEMBLY AND REASSEMBLY 3-1. TOOLS FOR DISASSEMBLY AND REASSEMBLY Tool Type Remarks Heater (1) Socket 10mm Wrench Motor (1), Balance (5), 2 holes of each 13mm with 6” left and right of the shock absorber 1 19mm Extension Pulley hole 10mm Replaceable for the box driver. Open End 13mm Since the bolt runs idle when the box wrench driver is used, use the box driver 17mm.

  • Page 12: Standard Disassembly Drawings

    This document can not be used without Samsung's authorization. 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 Figure Description 1. Remove the 2 screws holding the Back- Cover at the back of the washing machine and separate the Back-Cover pushing it downwards. (Assemble it by lifting it upwards) 2. After separating the Back-Cover, remove the M19 nut holding the Motor. To remove it, turn it counter-clockwise. As the Motor also rotates if the nut is turned slowly, torque it quickly and firmly in a single action. Do not remove the nut by inserting a screwdriver into the Motor, as this may result in a problem with the motor. 3. Remove the M19 nut and washer and then separate the Rotor. Since removing the rotor requires a lot of strength due to the magnetic force of the Rotor and it may come off suddenly, your hand or arm may be injured by the edge of the Stator or Frame. Therefore Disassembling and take precaution when separating it.
  • Page 13 This document can not be used without Samsung's authorization. Part Figure Description 1. Separate the Assy Thermistor and Guide Wire-T while pulling the Assy Thermistor. 2. Separate the Assy Thermistor and Assy Wire Harness while pressing the navel of the Housing. Disassembling and Repairing the 3. Pull the Assy Thermistor from Tub Back. Thermistor When disassembling Assy Thermistor , leave the rubber packing. CAUTION 1. When assembling Assy Thermistor, push to the end. If assembling like NG picture, water leakage possibility is high. 2. When assembling and disassembling Assy Thermistor , rubber Packing should be checked. If the gap existed between rubber packing and tub- back, water leakage possibility is high. Removal and Reassembly _ 11...
  • Page 14 This document can not be used without Samsung's authorization. Part Figure Description 1. Remove the 2 screws, which are at the back, fixing the COVER-TC Disassembling and 2. Grab the hook and lift it up. Repairing the Cover-T.C 3. It is easily disassembled when lifted at the same time as LID-T.C 1. Disconnect the connector connected to the Waver valve.Open the lid and remove the connector connected to EMI-FILTER. Disassembling and Repairing the Water 2. Remove 9 SCREW Supply Valve 3.
  • Page 15 This document can not be used without Samsung's authorization. Part Figure Description 1. Disassemble COVER-T.C. Disassembling and Repairing the Water 2. Remove the level sensor from the assembly. Level Sensor -Upper washer 3. Remove Clamp as shown in the picture and remove hose. 1. Remove FRAME FRONT. Disassembling and 2. Press the Hook part as shown to separate It Repairing the Water from the FRAME PLATE. Level Sensor -Lower washer 3.
  • Page 16 This document can not be used without Samsung's authorization. Part Figure Description 1. Open Lid-tc and remove 2 screws on each side 2. Lift the door up with both hands and remove Disassembling the LID-T.C & COVER- 3. Remove the Assy lid t.c low after separating TOP FRONT Frame and Assy lid t.c assembly hook using a flat screwdriver as shown in the figure. 4. Remove the cover detergent, cover rinse by lifting up as shown. 5. Using the driver as shownRemove cover top fron. 14 _ Removal and Reassembly...
  • Page 17 This document can not be used without Samsung's authorization. Part Figure Description 1. Remove 3 screws for panel separation Disassembling the 2. After removing the screw, pull the panel forward and remove it CONTROL PANEL 3. Disconnect the connector as shown. 1. Remove cover rinse and cover detergent with driver. Disassembling the 2. Remove hose and cover detergent after removing clamp as shown COVER TOP-DECO 3. Lift up the cover top as shown in the figure. Removal and Reassembly _ 15...
  • Page 18 This document can not be used without Samsung's authorization. Part Figure Description 1. Remove the 2 screws holding the ASSY PCB- MAIN at the back of the washing machine. 2. Separate the 2 Hooks by pushing it rightwards. 3. Remove the 2 screw and 2 Connectors for separating Guide Wire-T Separating the Main 4. Push the TUB upside to separate ASSY PCB- MAIN. and separate the ASSY PCB-MAIN lifting it up. 5. Separate the 4 Hooks. 6. Disconnect All Connectors on main PBA. Lift up Main PBA, Change SVC Part. After SVC, Certainly check the all Hooks on COVER- PCB(M) Otherwise COVER-PCB(M) will be disassembled during washing machine running. 16 _ Removal and Reassembly...
  • Page 19 This document can not be used without Samsung's authorization. Part Figure Description 1. Remove the 2 hexagonal screw holding the hinge door. 2. Putting and pressing hard a flat-head screwdriver or into the furrow between COVER-FILTER and FRAME-FRONT and then pull it towards to open the COVER-FILTER. Disassembling and Reassembling the Door Part 3. Remove the screw holding the cover filter. 5. Separate the Connector of assy wire harness. Removal and Reassembly _ 17...
  • Page 20 This document can not be used without Samsung's authorization. Part Figure Description 1. Pull the DIAPHRAGM upside, and finish disassembling along the circle. 2. Remove the 2 screws to separate the DOOR LOCK S/W. 3. Remove the 5 screws at the top of FRAME- Disassembling the FRONT. Front Cover/Frame Front (Check the Door Lock S/W) 4. Push the lever and pull it towards to open the COVER-FILTER. 5. Separate the remaining WATER REMOVAL HOSE (BLUE) from the hook. 6. Remove the 2 screw down under Frame Front. 7. Press the UPPER-PLATE slightly with the screwdriver to separate the FRAME-FRONT.
  • Page 21 This document can not be used without Samsung's authorization. Part Figure Description 1. Remove the 2 screws holding the ASSY PUMP DRAIN. 2. Separate the Clamp of the hose connected to the PUMP and then pull the DRAIN-HOSE. 3. Separate the Clamp of the hose connected to Disassembling the the PUMP and then pull the HOSE-AIR. Pump Motor Part 4. Separate the Clamp of the hose connected to the PUMP and then pull the HOSE-DRAIN. 5. Separate the wire connected to the PUMP. 1. If the washing machine works, drain the water in the wash tub by selecting the Spin course. If Removing the the washing machine does not work, remove Remaining Water the laundry from the wash tub and scoop the remaining water out of the tub using a cup.
  • Page 22 This document can not be used without Samsung's authorization. Part Figure Description 1. Open the door and remove the diaphragm as shown. 2. Remove 3 screws and detach Door lock s/w. 3. Tilt the set slightly backwardsRemove two screws at the bottom. Disassembling the Assy basket & tub of 4. Remove 4 screws at the top of the frame front. Upper washer 5. Use the tool to detach the two hooks, then move the frame front forward Pull it off. 6. Remove 9 screws and disassemble by pulling the part forward. 7. Remove the four screws and pull the part forward to remove it.
  • Page 23 This document can not be used without Samsung's authorization. Part Figure Description 8. After removing one screw, pull the part forward to remove it. 9. For top frame-right disassembly, remove the three parts of SCREW on the upper left side of the rear panel. 10. Remove 3 Screws on the back. Disassembling the Assy basket & tub of Upper washer 11. Remove 3 screws inside Frame Right. 12. Lift the upper assy cover top slightly, then remove the hook using a screwdriver and remove the part. 13. Separate in the same direction as the picture. Removal and Reassembly _ 21...
  • Page 24 This document can not be used without Samsung's authorization. Part Figure Description 14. Remove the holder and detach the hose. 15. Use tool to remove clamp and separate hose. 16. Separate the assembly screws of detergent and rinse cups. Disassembling the Assy basket & tub of Upper washer 17. Remove three screws on each side of the left and right sides. 18. Drain hose assembly area screw included Separate 3 Screws. 19. Left Earth wire assembly screw included Remove 2 Screws. 20. L ift the upper assy and remove the clamp to separate the hose. 22 _ Removal and Reassembly...
  • Page 25 This document can not be used without Samsung's authorization. Part Figure Description 21. Remove 3 Screws. 22. Remove the clamp first to separate the hose connected to the pump drain. CAUTION When removing the hose, please be careful because residual water may come out. Disassembling the Assy basket & tub of Upper washer 23. Use the tool to remove the wire bundles assembled into the frame. 24. Remove the four screws and lift up the assy basket. Removal and Reassembly _ 23...
  • Page 26 This document can not be used without Samsung's authorization. Part Figure Description 1. Disassemble 4 screws. 2. Lift up ASSY BASKER andDAMPER at the same Disassembling and time. Repairing the Damper -Upper washer 3. Remove the damper by lifting It up, Separate from CORNER FRAME. 24 _ Removal and Reassembly...
  • Page 27 This document can not be used without Samsung's authorization. Part Figure Description 1. Remove the 5 bolts fixing WEIGHT BALANCER and then pull it towards with caution. 2. Remove the 4 bolts fixing DAMPER to take ASSY TUB out. 3. Remove all wire and hose connected the ASSY-TUB. Disassembling the TUB of Lower 4. Open the cap of SPRING-HANGER to take washer ASSY-TUB out. 5. Lift the ASSY-TUB with two people carefully with holding SPRING-HANGER. 6. Remove the M10 bolt from the middle of the TUB and separate the TUB-FRONT and TUB- BACK. Removal and Reassembly _ 25...
  • Page 28 This document can not be used without Samsung's authorization. Part Figure Description 1. Disassemble the Front-Frame. 2. Separate the connection wire. - Separate the Thermostat fixed at the bottom of the Tub. (Take precaution as there may be water remaining.) Make sure to separate the Thermostat first and then separate the Heater. If you fail to observe this order, it may result in a shock and be damaged. 3. Release the nut holding the Heater with an M10 tool and then separate the Heater. Do not completely release the nut. Pull the Heater forward after releasing the Separating the nut. If the Heater is damaged, it may cause a Heater at the problem. Bottom Front Therefore unfasten the nut using spanner or wrench manually without using pincers or tweezers.
  • Page 29 This document can not be used without Samsung's authorization. Part Figure Description 1. Remove HOLDER and disconnect HOSE. 2. Disconnect the connector Disassembling the MEMS Sensor 3. To facilitate disassembly of the MEMS SENSOR, pull the tub toward the front as shown in the picture. 4. Remove two screws and detach the MEMS sensor. Removal and Reassembly _ 27...
  • Page 30 This document can not be used without Samsung's authorization. Part Figure Description 1. Remove 6 Screws. Disassembling the COVER TUB 2. Use a screwdriver to detach the 5 hooks and lift up the Cover-Tub. 1. Separate one bolt and open COVER. Disassembling the BLDC MOTOR 2. Remove connector and remove 6 bolts. 28 _ Removal and Reassembly...

  • Page 31: Troubleshooting

    This document can not be used without Samsung's authorization. 4. TROUBLESHOOTING 4-1. INFORMATION CODES Code Error Type Causes Remarks Upper Lower washer washer - 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 Water Level 1 1C insertion part of the air hose. Sensor - Hose engagement error. (disengaged) - Part fault. (Faulty internal soldering)

  • Page 32: 30 _ Troubleshooting

    This document can not be used without Samsung's authorization. Code Error Type Causes Remarks Upper Lower washer washer - The pump motor impeller is damaged internally. - The wrong voltage is supplied to the parts. - Part fault. - This occurs due to freezing in the winter season. - The drain hose is clogged. (Injection error, foreign Drain Error 1 5C material) - Clogged with foreign material. - The water pump terminal is not connected: rubber band, bills, cotton, hair pins, coins have collected inside the drain pump ASSY. - Check the consumer’s power conditions.
  • Page 33 This document can not be used without Samsung's authorization. Code Error Type Causes Remarks Upper Lower washer washer - A switch is jammed or stuck due to be pressed unevenly due to deformation of the control panel or button. - This error may occur when the screws that hold the sub PBA in place are tightened too much. Switch Error 1BC2 - A button other than the Power button is (Main Relay continually pressed. Error) (for more than 30 seconds). - Deformation of an internal plastic injection part. - A screw for assembling the sub PBA is tightened too much.

  • Page 34: 32 _ Troubleshooting

    This document can not be used without Samsung's authorization. Code Error Type Causes Remarks Upper Lower washer washer - Heater engagement fault. (out of place) - The air hose is out of place and water leakage occurs during the spin cycle. - The tub back at the safety bolts fixing part is broken. - Water leakage occurs at the front with foaming because of too much detergent. - Water leakage occurs because the connecting hose to the detergent drawer is connected incorrectly. 1 LC - The drain pump filter cover is engaged incorrectly. - Water leakage occurs at the drain hose. Water Leakage Error - The duct condensing holding screws are worn.
  • Page 35 This document can not be used without Samsung's authorization. Code Error Type Causes Remarks Upper Lower washer washer - 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. Foaming “Sud” or “SUdS” is displayed when too much 1SUD Detected foaming is detected and “0” is displayed when the removal of the foaming is finished. (This is one of the normal operations. It is an error for preventing non-sensing faults.) 18C1 - Error detected in the Mems PBA or data error detected. Check the wire connections. Mems PBA 18C2 Replace if necessary. Error Detected 1. Check the wire connections.

  • Page 36: Checkpoints

    This document can not be used without Samsung's authorization. 4-2. CHECKPOINTS ▶ I f you encounter an issue to check with the washer, first check the table below and try the suggestions. Problem Action • M ake sure your home electrical system is providing electrical power that matches the Does not turn on. requirements of the washer. • M ake sure the power plug of the washer is completely plugged in. • M ake sure the door is properly closed. • M ake sure the taps are open. • M ake sure to tap and hold to start the washer. • M ake sure Child Lock is not activated.

  • Page 37: Test Modes

    This document can not be used without Samsung's authorization. 4-3. TEST MODES Mode How to enter Press Start/Pause Set the scheduled Smart Install Standby Smart Install time to 17:00 for 7 seconds Automatic Smart Install Press Start/pause While displaying “AS”. check mode Press Spin While displaying “AS” Spin, Manual check Enter Smart Install Check devices in turn when pressing Spin. mode Press the first button on the left at the bottom S/W version Enter Smart Install While displaying “AS”. Check Press the first button on the right at the bottom while displaying “AS”, “Cr”. Tum jog dial along the direction for CW when displaying. Diagnostic Code...

  • Page 38: Corrective Actions For Each Error Code

    This document can not be used without Samsung's authorization. 4-4. CORRECTIVE ACTIONS FOR EACH ERROR CODE ▶ These are common troubleshooting procedures for each drum-type washer error mode. For detailed information, refer to the general repair scripts. Code Error Type Causes Corrective Actions Description of Photo Upper Lower washer washer • C heck the water level sensor terminal connections and contacts. • W ater level sensor fault • A n error occurs if an incorrect...
  • Page 39 This document can not be used without Samsung's authorization. Code Error Type Causes Corrective Actions Description of Photo Upper Lower washer washer • C heck the motor connector terminal connections and • W ashing motor contacts. fault • 3 C is displayed because • Incorrect overloading occurs due to too Washing Motor connections of the 1 3C much laundry.

  • Page 40: 38 _ Troubleshooting

    This document can not be used without Samsung's authorization. Code Error Type Causes Corrective Actions Description of Photo Upper Lower washer washer Drain [Upper-Washer] • I f the drain pump revolutions Check the drain pump resistance are restrained due to freezing in the winter season, check the - Drain : 13Ω ~ 16.5Ω method to remove the freezing • F reezing in the and remove as directed. Drain winter season • C heck whether the revolutions • F oreign materials in...
  • Page 41 This document can not be used without Samsung's authorization. Code Error Type Causes Corrective Actions Description of Photo Upper Lower washer washer • C heck the Door-Lock SW terminal connections and contacts. • B ring the probe of tester into contact with two terminals of Door-Lock SW. • D oor-Lock SW • [ DC Error] In state of Door fault 1 DC...

  • Page 42: 40 _ Troubleshooting

    This document can not be used without Samsung's authorization. Code Error Type Causes Corrective Actions Description of Photo Upper Lower washer washer [ FRONT ] • C heck for connection between ▶ TYPE 1 • Disconnection wire and heater. Check the resistance between A and B. wire • I f wash heater is faulty, replace it. It should be 16.05±0.65Ω. Heater Error • H eater falut - Refer the TYPE 1 • W ash-thermistor...
  • Page 43 This document can not be used without Samsung's authorization. Code Error Type Causes Corrective Actions Description of Photo Upper Lower washer washer • I f the water valve faulty, replace the part. • C heck that the • I f the water level sensor has a water supply is functional error, replace it. continuing. • C heck the hose. This error Overflow Error 1 OC • W ater level...
  • Page 44 This Service Manual is a property of Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable © 2024 Samsung Electronics Co.,Ltd. International and/or domestic law. All rights reserved.

This manual is also suitable for:

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