Samsung WF45M5500A Series Service Manual

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SERVICE
WASHING MACHINE (DRUM)
WASHING MACHINE
DRUM TYPE
Basic Model : WF45K6500AV/A2
(WF6500K PROJECT)
Model Name : WF45N5300AV
WF45N5300AF
WF45N5300AW
Model Code : WF45N5300AV/US
WF45N5300AF/US
WF45N5300AW/US
(WF5300N)
Manual
1. Safety Instructions
2. Features and Specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagram
6. Wiring Diagram
7. Reference
CONTENTS

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Summary of Contents for Samsung WF45M5500A Series

  • Page 1 WASHING MACHINE DRUM TYPE Basic Model : WF45K6500AV/A2 (WF6500K PROJECT) Model Name : WF45N5300AV WF45N5300AF WF45N5300AW Model Code : WF45N5300AV/US WF45N5300AF/US WF45N5300AW/US (WF5300N) 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 ► 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. CAUTION WARNING BEFORE SERVICING...
  • Page 4 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 parts damaging. 2 _ Safety Instructions...
  • Page 5 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. • Check for any water leakage. √ Perform a test run for the washing machine 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 6 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

    2. FEATURES AND SPECIFICATIONS 2-1. FEATURES Features Description Smart Control • Samsung’s innovative Smart Control technology enables you to control your washer through personal technologies such as smart phones. You don’t have to be on standby until the cycle ends. Smart Control allows you to monitor the washing process and let you know when the cycle is complete. Smart Care • Samsung’s Smart Care, an automatic error-monitoring system, detects and diagnoses problems at an early stage and provides a quick and easy solution through LCD navigation. With the innovative Smart Control technology, you can also be alerted when the problem occurs via your smart phones. Self Clean+ • Clean your drum with one button! This Pure Cycle is specially designed to (Tub Cleaning cycle) remove detergent residue and dirt buildup in the tub, diaphragm, and on the door glass without the need for special chemical detergents. Stylish Design • The stylish design of this washer blends well with your environment. Premium & Ergonomic • A premium design provides an ergonomic and sophisticated look to complement Design any modern interior. Its natural curves incorporate an elegant chrome line and a...
  • Page 8: Specifications

    2-2. SPECIFICATIONS Front loading washer Type WF45M5500A* WF45N5300A* A: High-Overall 38.7 (984) B: Width 27 686) Dimension (inches / mm) C: Depth with door open 54.6 (1,386) D: Depth 34 (864) Water pressure (psi (kPa)) 20~116 (137~800) NET Weight (lb (kg)) 218 (99) Spin revolution 1,300 rpm Heater rating 900 W Washing 120V 200 W 200 W Washing and Heating 120V 1150 W Heater rating Spin 120V 550 W...
  • Page 9: Comparing Specifications With Existing Models

    2-3. COMPARING SPECIFICATIONS WITH EXISTING MODELS Project WF5500M WF5300N WF45N5300AV WF45M5500AP Model Name WF45M5500AZ WF45M5100AW WF45N5300AF WF45M5500AW WF45N5300AW Image Capacity (cu.ft. DOE) 4.5 cu.ft. 4.5 cu.ft. 4.5 cu.ft. Motor Type DD Motor DD Motor DD Motor MAX RPM 1200 1200 1200 Heater (900W) Main Spec...
  • Page 10: Options Specifications

    2-4. OPTIONS SPECIFICATIONS Item Code Remarks USER : DC68-03665A MANUAL USER Default TECH : DC68-03672A Default CAP-FIXER DC67-00307A Default HOSE-HANGER DC62-10278A 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. 8 _ Features and Specifications...
  • Page 11: Disassembly And Reassembly

    3. DISASSEMBLY AND REASSEMBLY 3-1. TOOLS FOR DISASSEMBLY AND REASSEMBLY Tool Type Remarks Heater (1) Socket 10mm Wrench with Motor (1), Balance (5), 2 holes of each left and 13mm 6” Extension right of the shock absorber 1 Pulley hole 19mm Replaceable for the box driver. 10mm Open End Since the bolt runs idle when the box driver is 13mm wrench used, use the box driver 17mm. 19mm Tool to protect the idle and abrasion of the bolt Vice pliers for the box driver. Others General tools for the after service. (Driver, Nipper, Long nose) Removal and Reassembly _ 9...
  • Page 12: 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 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 take precaution when separating it. Disassembling and You can separate the connector by pressing Repairing the Rear Motor Motor wire 4. Separate the Motor Wire and Hall Sensor while pressing the navel of the Housing. Take precaution...
  • Page 13 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 3. Pull the Assy Thermistor from Tub Back. and Repairing the When disassembling Assy Thermistor , leave the Thermistor 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 Part Figure Description 1. Remove the 2 hexagon screws, which are at the back, fixing the COVER-TOP. 2. Disassemble the COVER-TOP by sliding it backwards. 3. Press the Separate button to separate the ASSY DRAWER. Separating the Cover_Top and Panel-Control (Check Sub-PCB) 4. Pull the PANEL-CONTROL towards and then lift it upwards to separate. 5. Carefully disconnect the two wiring connectors by hand. 6. Disassemble the ASSY KNOB-ENKODER by pulling it upwards. 7. Remove the all screws holding the PCB and release the hooks on both sides to remove the PCB for repair / replacement. 12 _ Removal and Reassembly...
  • Page 15 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 5. Separate the 3 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. Removal and Reassembly _ 13...
  • Page 16 Part Figure Description 1. Remove the 2 screws holding the HINGE-DOOR and the FRAME-FRONT. 2. Disassemble the ASSY DOOR lifting it up slightly. 3. Remove the 18 screws fixing the HOLDER- GLASS. (including the 2 blue screws holding the LEVER- DOOR, including the 3 arrow screws holding the HINGE-DOOR.) 4. Putting and pressing hard a flat-head screwdriver into the furrow between COVER-DOOR and Disassembling and SUPPORT-HINGE. Reassembling the Door Part 5. Making a semicircle with screwdriver. (Disassemble the hooks) 6. Disassemble the HOLDER-GLASS from COVER- DOOR Take the DOOR-GLASS , SUPPORT- HINGE, HINGE-DOOR. 4 Check Points for Troubleshooting • Check the status of the screws holding the Hinge (check if they are loose). Check if the front and rear of the door and the hinge part are not damaged. 14 _ Removal and Reassembly...
  • Page 17 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. Removal and Reassembly _ 15...
  • Page 18 Part Figure Description 1. Remove the Top Assy-Plate. 2. Disconnect the water supply valve wire connector. Disassembling and 3. Remove the 4 screws holding the water supply Repairing the Water valve. Supply Valve 4. Remove the hose connected to the valves. (Use the plier to remove the hose.) 1. Separate the wire connected the SENSOR- PRESSURE. 2. Adjust the plastic clip( of pressure sensor) between two nose of plier, then grip and pull the plastic clip with caution. (Use the long nose plier to push the hook). Disassembling and Repairing the Water Level Sensor 3. Remove the hose from the SENSOR-PRESSURE. Disassembling the • Hold the Clamp of the Detergent Box and disassemble the Hose-Drawer-Tub.
  • Page 19 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 the Disassembling 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. • If the washing machine works, drain the water in the wash tub by selecting the Spin course. Removing the If 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. Removal and Reassembly _ 17...
  • Page 20 Part Figure Description 1. Remove the 2 screws fixing GUIDE-WIRE, 6 screws fixing FRAME-PLATE(U). 2. Remove the 6 bolts fixing WEIGHT BALANCER and then pull it towards with caution. Disassembling the 3. Remove the 4 bolts fixing DAMPER to take ASSY TUB out. 4. Remove all wire and hose connected the ASSY- TUB. 5. Open the cap of SPRING-HANGER to take ASSY- TUB out. 6. Lift the ASSY-TUB with two people carefully with holding SPRING-HANGER. 18 _ Removal and Reassembly...
  • Page 21 Part Figure Description Disassembling the 7. Remove the M10 bolt from the middle of the TUB and separate the TUB-FRONT and TUB-BACK. 1. Separate the ASSY DRUM from TUB, remove 6 M10 bolts from the upper ASSY DRUM, disassemble the ASSY FLANGE SHAFT. 2. Remove 12 screws from the outer sides and then remove the two upper and lower BALL BALANCERS. Disassembling the DRUM 3. Remove 3 screws from the outer sides and then remove the 3 DRUM-LIFTERS. - In order to disassemble the drum lifter in the assembly condition, pierce a hole with the drill. - Remove a screw from the outer sides and then remove the DRUM-LIFTERS. - Block a hole with a silicon after replacing the drum lifter. Removal and Reassembly _ 19...
  • Page 22 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. Separating the Pull the Heater forward after releasing the nut. If Heater at the Bottom the Heater is damaged, it may cause a problem. Front Therefore unfasten the nut using spanner or wrench manually without using pincers or tweezers. When you re-assembly the heater, make sure to install the Heater exactly onto the Bracket inside the Tub. If it is not properly installed, it may cause a fire. In addition, completely insert the packing part into the Tub when assembling it so that the packing part is completely attached onto the Tub. Check Points for Troubleshooting 1. Check if the resistance of the Heater is equal to 27.1Ω (for the 1900W product), or 26.2Ω...
  • Page 23: Troubleshooting

    4. TROUBLESHOOTING 4-1. ERROR MODES ► This is a washer integrated error mode. For detailed information, refer to the general repair scripts. Error Type For USA Causes Remarks - 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 error. (disengaged) - Part fault. (Faulty internal soldering)
  • Page 24 Error Type For USA Causes Remarks - The signals between the sub and main PBAs are not sensed because of commuication error. - 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 signals between The DR Module and main PBAs are not sensed because of commuication error. - Check The connector connections between The DR Module and main PBAs carefully. → Check for incorrect or loose connections, etc. - Remove The DR Module and Check for any faulty soldering. - The signals between The WIFI Module and main PBAs are not sensed because of commuication error. - Check The connector connections between The WIFI Module Communication and main PBAs carefully. Error → Check for incorrect or loose connections, etc. - Remove the WIFI Module and Check for any faulty soldering. - The signals between The LCD Module and main PBAs are not sensed because of commuication error. - Check The connector connections between The LCD Module and main PBAs carefully.
  • Page 25 Error Type For USA Causes Remarks - 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. Water Leakage Error - The drain pump filter cover is engaged incorrectly. - Water leakage occurs at the drain hose. - The duct condensing holding screws are worn. - The nozzle-diaphragm is engaged in the opposite direction or the rubber packaging is omitted. - Water leakage occurs because the screws that hold the tub back and front in place are fastened incorrectly. - The leakage sensor is faulty. - Water is supplied continually because the water level detection does not work. - Because the drain hose is clogged and there is an injection This error occurs error (at a narrow section), the water level detection does not because the water...
  • Page 26: Test Modes

    4-2. TEST MODES Mode How to enter Set the scheduled Press Start/Pause Standby Smart Install Smart Install for 7 seconds time to 17:00 Automatic Smart Install Press Start/pause While displaying “AS”. check mode Press Delay End While displaying “AS” delay end, Manual check Enter Smart Install mode...
  • Page 27: Corrective Actions For Each Error Code

    4-3. 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. Error Error Type Causes Corrective Actions Description of Photo Mode Check the water level sensor terminal connections and Check the water level sensor • Water level sensor frequency. contacts. fault - Check it after the water An error occurs if an incorrect • Incorrect water level sensor is used. level sensor and the connections of the Make sure to check the connector are connected.
  • Page 28 Error Error Type Causes Corrective Actions Description of Photo Mode Check resistance values DDC means add door is normally displayed when opened Close the add door. you press the door switch Check add door switch, button. Barrier, Lock module’s movement is operate normally. check Open detection switch • Main PCB fault and Barrier ‘s Lock pillars DOOR • Bending connector coming down while pressing in Check door lock motor operation normally. resistance. (1-2 pin Main PBA door detection 46.57±15Ω) circuit is fault or connector Lock stroke check normal combination. detection on protrusion Replace or repair if faulty. status. (3-4/3-5 pin check resistance value displayed normally). ► TYPE 1 Check the resistance between A and B. It should...
  • Page 29 Error Error Type Causes Corrective Actions Description of Photo Mode If the water level sensor has a functional error, replace it. Check the hose connected Check the hose. This error • Water level sensor to the water level sensor. occurs if it is torn or has a hole. fault Overflow Error Check whether the • Freezing in the This error occurs if water is hose is folded, cut, or winter season frozen in the winter season. damaged. Use hair dryer to defrost hose. Consider relocating the unit to warmer location. Check the connections for the washing heater temperature sensor connector. If the washing heater • Washing temperature sensor has a functional error, replace it. temperature sensor fault - A tE error occurs.
  • Page 30: Pcb Diagram

    5. PCB DIAGRAM 5-1. MAIN PCB Location Part No. Function Description Location Part No. Function Description Supply power to the sensor and provides a communications PBA Power Supply Supply 120V of AC power. CN11 CNS502 Sensor Connection Port function. Main Relay Be Supplied PBA power when the Power button is pressed. Flash Writing Connection Port Provides writing Flash memory. CNS202 Washing Heater Relay The switch for the Washing Heater power. Supply power to the SUB PBA and provides a communications SUB PBA Connection Port CNS801 function. Supply power to the MEMS PBA and provides a communications CNS501 MEMS Connection Port Each Load Connection Port The port to supply power for each electric device.
  • Page 31: Circuit Diagrams Of Main Parts For Main Pcb

    5-2. CIRCUIT DIAGRAMS OF MAIN PARTS FOR MAIN PCB ► CNS502 1. Ground 2. Door SW signal ► CNS202 3. Leakage signal 1. 5V 4. DRY_AIR_TEMP signal 2. RX_FROM_TEST 5. DRY_CON_TEMP signal 3. TX_TO_TEST 6. Water TEMP signal 4. Ground 7. Water Level OUT 5. BOOT 8. Water Level IN ► CNS501 1.
  • Page 32: Inverter Pcb

    5-3. INVERTER PCB Location Part No. Function Description Communication with MAIN Communication Hall Sensor Sensing Hall signal MOTOR 3-Phase Output Motor Output AC Power Source Supply AC Power 30 _ PCB Diagram...
  • Page 33: Circuit Diagrams Of Main Parts For Inverter Pcb

    5-4. CIRCUIT DIAGRAMS OF MAIN PARTS FOR INVERTER PCB ► CN2 ► CN6 1. 5V 1. Motor signal (U) 2. HALL A sensor signal 2. Motor signal (V) 3. HALL B sensor signal 3. Motor signal (W) 4. Ground ► CN1 1. MAIN Communications signal ► CN5 2. MAIN Communications signal 1. L line 3. Ground 2. N line PCB Diagram _ 31...
  • Page 34: Sub Pcb

    5-5. SUB PCB Location Part No. Function Description Buzzer Be generated sound when the menu key is pressed or the encoder is operated, the menu is closed. FLASH WRITING Writing Programme to SUB. CN401 PBA Communication Port between MAIN and SUB. CN201 PBA Communication Port TOUCH PBA COMMUNICATION Supply power to Touch PBA and communication to SUB PBA. CN402 32 _ PCB Diagram...
  • Page 35: Circuit Diagrams Of Main Parts For Sub Pcb

    5-6. CIRCUIT DIAGRAMS OF MAIN PARTS FOR SUB PCB ► CN201 1. Communications Port(Rx) 2. Communications Port(Tx) 3. Reset Signal input 4. 5V 5. GROUND 6. 12V 7. Empty Pin 8. Power_SW 9. Water level Signal 10. Empty Pin ► CN402 1. 12V 2. GROUND 3. SDA1 4. SCL1 5.
  • Page 36: Reactor

    5-7. REACTOR Location Part No. Function Description INDUCTANCE 1.5mH ± 15%(1KHz, 1V) HP-4194A 0.1V (25℃±2℃) 0.07 Ω ± 20% HIOKI 3540 (25℃±2℃) DC RESISTANCE V_L 3.6V ± 15% AC 1,800V 1 SEC. TOS-5101 WITHSTANDING VOLTAGE CUT OFF CURRENT (5mA) 34 _ PCB Diagram...
  • Page 37: Wiring Diagram

    6. WIRING DIAGRAM 6-1. WIRING DIAGRAM (WF45M5500A*, WF45M5100A*) n REFERENCE INFORMATION BLACK BLUE GREEN GRAY NATURAL ORANGE PINK SKYBLU SKYBLUE VIOLET WHITE YELLOW Wiring Diagram _ 35...
  • Page 38: Reference

    7. REFERENCE 7-1. WF5500M PROJECT NAME MODEL NAME IN THE MARKET BOM MODEL CODE M 5 5 0 ► Buyer Code 7 : WF7500K 6 : WF6500K 5 : WF5500M ► Year 1 : Entry ► Region ► Color 2 : Entry 13: F A : N.America W : WHITE...

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