Samsung WA45T3400A Series Service Manual
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Samsung WA45T3400A Series Service Manual

Top–loading washer
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SERVICE
WASHING MACHINE (TOP-LOADING)
TOP–LOADING WASHER
Basic Code
: WA45T3200AW/A4
Model Name : WA45T3400A*
Model Code
: WA45T3400AV/A4
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 WA45T3400A Series

  • Page 1 TOP–LOADING WASHER Basic Code : WA45T3200AW/A4 Model Name : WA45T3400A* Model Code : WA45T3400AV/A4 SERVICE Manual WASHING MACHINE (TOP-LOADING) CONTENTS 1. Safety Instructions 2. Features and Specifications 3. Disassembly and Reassembly 4. Troubleshooting 5. PCB Diagram 6. Wiring Diagram 7. Reference...

  • 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.
  • Page 4 WHILE SERVICING WARNING • Check if the power plug and outlet are damaged, flattened, cut or otherwise degraded. 4 If faulty, replace it immediately. Failing to do so may result in electric shock or fire. 4 If plug is faulty replace it, if outlet in consumers home is faulty have consumer call an electrician to replace. • Completely remove any dust or foreign material from the housing, wiring and connection parts. 4 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 connected properly. 4 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.
  • Page 5 BEFORE SERVICING CAUTION • Do not sprinkle water onto the washing machine directly when cleaning it. 4 This may result in electric shock or fire, and may shorten the product’s life cycle. • Do not place any containers with water on the washing machine. 4 If the water is spilled, it may result in electric shock or fire. This will also shorten the product’s life cycle. • Do not install the washing machine in a location exposed to snow or rain. 4 This may result in electric shock or fire, and shorten the product’s life cycle. • Do not press a control button using a sharp tool or object. 4 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. 4 Make sure that they do not break when force is applied. • Check if there is any residue that indicates liquid entered the electric parts or harnesses. 4 If any liquid has entered into a part, replace it or ensure no remaining moisture inside the part. • If you need to place the washing machine on its back or side for servicing purposes, place a support(s) on the floor and lay it down carefully so its back/side is on the floor. 4 Do not lay it down on its front. This may result in cosmetic damage to frame front and/or damage to the tub. Safety Instructions _ 3...
  • Page 6 AFTER SERVICING CAUTION • Check the assembled status of the parts. 4 Now is a good time to inspect your work. Review all connections and wiring, including mounting hardware. • Check the insulation resistance. 4 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. • Ensure washing machine is level by pressing down on corners to check for any movement. If not level, adjust legs and check again until no movement is present. Verification that unit is level will reduce customer dissatisfaction and redo call. 4 Vibrations can shorten the lifetime of the product. 4 _ Safety Instructions...

  • Page 7: Features And Specifications

    2. FEATURES AND SPECIFICATIONS 2-1. PRODUCT FEATURE Features Description • Even bulky garments and blankets get super clean. The Great capacity leaves The Great Capacity enough room for a more thorough, cleaner wash. EZ-Closed Lid • The door is designed to close softly and prevent users from being injured Features and Specifications _ 5...

  • Page 8: Specifications

    2-2. SPECIFICATIONS TYPE TOP LOADING WASHER A. Height 111.7cm B. Width 68.6cm DIMENSION (Inches / cm) C. Height with Door open 151.5cm D. Depth 74.4cm WATER PRESSURE 20~116psi (137~800kPa) WEIGHT 61.0kg(134.5lb) CAPACITY 4.5 cu.ft WASHING 120V 700W POWER CONSUMPTION SPIN 120V 400W DRAIN 120V SPIN REVOLUTION 700rpm...

  • Page 9: Detail Features

    2-3. DETAIL FEATURES Grade WA45T3200A* WA45T3400A* Image Capacity(DOE) AquaJet Diamond interior drum Pure Cycle Main Spec. Washing Cycles ® Pulsator material Max rpm Motor AC Motor AC Motor Color Neat White BLACK Center display Digital Time Display 4 digit Digital Time Display 4 digit Jog Dial Main display LED color...

  • Page 10: Options Specifications

    2-4. OPTIONS SPECIFICATIONS Item Item Name Code No. Remark HOSE-HANGER DC61-00224C Default CABLE TIE 6501-000121 Default MANUAL-BOOK DC68-03850E Default ASSY CAP V.W DC97-18313A Default 8 _ Features and Specifications...

  • Page 11: Disassembly And Reassembly

    3. DISASSEMBLY AND REASSEMBLY 3-1. TOOLS FOR DISASSEMBLY AND REASSEMBLY Tool Type Remarks 10mm Tub(16), Fixer screw(5), Motor(1), Balance(5) Box driver 17mm Damper(2), Damper(friction 1) 10mm Replaced by box driver Double-ended spanner 17mm A Tool for protecting empty turning of bolt or abrasion from using box driver Vice pliers For disassembly of Spin drum Others Common tools for servicing (screwdriver, nipper, long...

  • Page 12: Disassembly

    3-2. DISASSEMBLY Part Figure Description 1. Remove the 6 screws holding the control panel assembly and separate cover panel. 2. Separate the both hooks. (Left and Right) 3. Separate the cover panel upward. * I f it is difficult to disassemble, use the (-) driver to disassemble hooks. (Be careful damage of hooks.) Sub and Main PCB (continued) 4. Remove the 2 screws holding the control panel assembly and turn the panel over.
  • Page 13 Part Figure Description 6. Pull and lift up the cover PCB(m). 7. Separate the cover PCB(m) and the wires connected to the main PBA. After reassembling the housing, check if the wires are properly connected. When disassembling and reassembling the Sub and Main PCB housing, take care that you do not damage the part.
  • Page 14 Part Figure Description 1. Remove the 2 inlay tapes. Door Assembly 2. Remove the 4 screws holding the door lid TC and separate the door. 12 _ Disassembly and Reassembly...
  • Page 15 Part Figure Description 1. Remove the 4 screws from the cover top. 2. Separate the control panel assembly. 3. Separate the water valve, the pressure switch. Separate the housing to prevent stress and damage to the wire-harness. 4. Separate the main wire harness, the pressure switch hose clip, Grounding screw.
  • Page 16 Part Figure Description 1. Disassemble the control panel assembly. 2. Separate the pressure switch housing. Sensor Pressure Switch 3. Before separating the hose, release the clip. When releasing the clip, take care that you do not tear the hose. 1. Separate the back cover. 2.
  • Page 17 Part Figure Description Thermistor 1. Remove the 2 screws. 1. Separate the top cover assembly by lifting and pushing ahead the top part of the assembly. 2. Remove the 2 screws holding the panel control Separate all the wires connected to the housing.
  • Page 18 Part Figure Description 5. Remove the bolt holding the pulsator with a 10mm wrench according to the direction of arrow 6. Remove the shaft with the jig wrench. - Release the nut in a clockwise direction. - F asten the nut in a counterclockwise direction. 7. Place the main body so that the front Clutch frame faces upward and remove the 2 bolts holding the saddle with a 10mm wrench.
  • Page 19 Part Figure Description 10. Separate the 1 marked housings. 11. Separate the clip. Clutch 12. Remove the 6 screws fixing the clutch assembly and then separate the clutch assembly. TMR sensor 1. Remove the 2 screws with a 10mm spanner. Reassembly procedures are in the reverse order of dissasembly procedures. Disassembly and Reassembly _ 17...

  • Page 20: Troubleshooting

    4. TROUBLESHOOTING 4-1. TEST MODE mode How to enter Set the scheduled Press Start/Pause Standby Smart Install Smart Install time to 17:00 for 7 seconds Smart Install Press Start/Pause While displaying “AS” Automatic check mode Press Delay End While displaying “AS” delay end, Check devices in Enter Smart Install Manual check mode turn when pressing delay end. Enter Smart Install Press the first button on the bottom While displaying “AS” S/W version Check Press the first button on the right at the bottom While displaying Enter Smart Install...

  • Page 21: Diagnostic Code & Corrective Action

    4-2. DIAGNOSTIC CODE & CORRECTIVE ACTION Code Meaning The WaterLevel sensor is not working properly. • Check WaterLevel Sensor wire harness. • If the information code remains, contact a customer service centre. NOTE When the washer displays “1C”, the washer do draining for 3 minutes. During this time, the Power button is inoperative. Check the motor for operation. • Try restarting the cycle. • If the problem continues, call for service. Water is not supplied. • Make sure the water taps are open. • Make sure the water hoses are not clogged.
  • Page 22 Code Meaning Water is overflowed. • Restart after spinning. • If the information code remains on the display, contact a local Samsung service center. When position of the clutch can't be detected. • If the information code remains, contact a customer service center. After position of the clutch is detected, if the signal of the clutch hall goes wrong. • If the information code remains, contact a customer service center. Spinning does not work. • Make sure laundry is spread out evenly. • Make sure the washing machine is on a flat, stable surface. • R edistribute the load. If only one item of clothing needs washing, such as a bathrobe or pair of jeans, the final spin result might be unsatisfactory, and an “Ub” check message will be shown in the display. Display for additional rinsing.

  • Page 23: Corrective Actions For Each Code

    4-3. CORRECTIVE ACTIONS FOR EACH CODE Error Error Type Causes Corrective Actions Description of Photo Mode  C heck the water level sensor frequency. • C heck if the water 1. C heck it after the water level level sensor is • C heck the water level sensor sensor and the connector are defective. terminal connections. connected.
  • Page 24 Error Error Type Causes Corrective Actions Description of Photo Mode 1. Measure the resistance of the water supply valve. - R esistance : 0.9KΩ to 1.1KΩ between the terminals of the Water Supply Valve. • I f the water supply valve is broken, 2. C heck whether there is foreign replace the valve. • T his may occur material in the Water supply valve when The water filter.
  • Page 25 Error Error Type Causes Corrective Actions Description of Photo Mode • C heck if a dE Check occurs during 1. C heck the resistance for Read SW the boiling course. (Checking Part : White-Green Wire) This may occur • A s this Check occurs because the - R esitance : Approx 0.2ꭥ between when the door door is opened, close the door. the terminals of Reed SW. switch is defective.
  • Page 26 Error Error Type Causes Corrective Actions Description of Photo Mode • C heck for any leakage on the base, • C heck for any Hose, Valve and Tub connections and leakage. take any required action. • F oreign material • D uring natural draining, this error Water in the DV case occurs when the drain bellows Leakage Error are clogged with foreign material. • F ault of a hose Remove the foreign material.
  • Page 27 Error Error Type Causes Corrective Actions Description of Photo Mode Check the contact between the control panel buttons and their corresponding • C heck whether either the Power tact switch. switch or a tact switch is continually - There must be a gap between pressed. a control panel button and its • C heck whether the service PBA • T he Power button corresponding micro switch.
  • Page 28 Error Error Type Causes Corrective Actions Description of Photo Mode • T his may occur • S ince this occurs when an alien when an alien substance is in the Draining Bellows, substance is in for natural draining, remove the the DV Case This alien substance. Water may occur due Leakage Error • I f the drain motor is defective, to a defect of the...
  • Page 29 Error Error Type Causes Corrective Actions Description of Photo Mode • Check wire connections • T his may occur due to disconnection. • Replace the Mems PBA. Mems PBA • T his may occur • R eplace Mems PBA because of the Error when the Mems Main PBA wire disconnection Check or PBA is defective. PBA silver nano part malfunction. Check the thermistor resistance • W ashing (Resistance at 20~30℃: 66.187~36.941㏀) temperature sensor fault...

  • Page 30: Troubleshooting

    4-4. TROUBLESHOOTING Problem What To Do • Plug the unit into the wall outlet. Check for proper voltage. • Check fuse or reset circuit breaker. • Push any key to turn on the washer and press the Start/Pause key to run the washer. • Close door and push the Start/Pause key to run the washer. • C heck if washer is in a pause, soak or suds process. Wait briefly and it may start. (If the washer is in suds period, Suds will light up instead of remaining time.) Will Not Start • C heck for restricted drain system. (If there is electrical problem in drain system, “nd” error will occur after 30minutes.) • Check Water Supply. • Check the line or water valve screen filter. • Check if PCB connectors are assembled properly. • Check if CN2 terminals on PCB are in good condition. (Refer to PCB Connector Check.) • Replace PCB. • Make sure inlet hose connections are not leaking. Check for rubber gasket damage due to over tightening.
  • Page 31 Problem What To Do • Unbalance due to not enough load. Put additional load. • D ue to excessive suds by using general detergent. Use HE (High-Efficiency) or reduce its quantity. Wet Clothes • Low Spin Speed or Drain Only was selected. • Go to “ Will Not Spin”. • P erform Quick Test Mode. Check Door Lock. Check the resistance for door lock. if Approx 0.2 ohm between the terminal of contact Will Not Lock (white-Red wire), and if not, change pcb(refer to pcb connector check). • Read Lock Switch and PCB (CN3). (Refer to PCB Connector Check.) • D isplay shows “LO”. Turn off and on the unit. If “LO” keeps illuminating, check PCB and Door Lock Switch. • Read Lock Switch and PCB (CN3). (Refer to PCB Connector Check.) Will Not Unlock • P erform Quick Test Mode. Check Door Lock. Check the resistance for door unlock if Approx 0.2 ohm between the terminal of contact (white-blue wire), and if not, change PCB (refer to pcb connector check).

  • Page 32: Pcb Diagram

    5. PCB DIAGRAM 5-1. CONNECTOR DESCRIPTION (ASSY PCB MAIN) ▶ This Document can not be used without Samsung’s authorization. ▶CN10 ▶CN12 ▶CN9 ▶CN6 1. GND 6. WATER LEVEL 1 1. WL from SUB 6. 5V_1 1. 5V 1. DOOR Lock/ Unlock 5. Door Lock signal 2. CHECKER 7. WATER LEVEL 2 2. 5V 7. GND 2.
  • Page 33 - Check Voltage at Pin #1 of CN7 and Pin #1 of CN8 - Check Frequency at Pin #6 and #9 of CN10 - When motor operates CCW = AC 120V - Reset Frequency = 25.6kHz Motor Check Water Level Sensor Check - Check Voltage at Pin #2 of CN7 and Pin #1 of CN8 - Check Frequency at Pin #7 and #9 of CN10 - When motor operates CW = AC 120V - Reset Frequency = 25.6kHz - Check Voltage at Pin #6 of CN1 and Pin #3 of CN8 - Check Voltage at Pin #1,2,3,5 of CN1 and Pin #3 of CN8 Pump Motor Check Water Valve Check - When Pump Motor operates = AC 120V - When each Valve operates = AC 120V - Check Voltage at Pin #1 and #3 of CN6 - Check Voltage at Pin #4 of CN1 and Pin #3 of CN8 Door Lock Check Clutch Motor Check - When Door Lock operates = DC 12V - When Clutch Motor operates = AC 120V - Check Voltage at Pin #1 of CN8 and Pin #3 of CN8 AC Power Check - Tester Check = AC 120V 28 _ PCB Diagram...

  • Page 34: Connector Description (Assy Display Pcb)

    5-2. CONNECTOR DESCRIPTION (ASSY DISPLAY PCB) ▶ This Document can not be used without Samsung’s authorization. Location Part No. Function Description SW704 Jog Dial Jog Dial DSP701 LED Display Display function BZ601 Buzzer Making a sound LED7** Yellow LED Display function CN802 Connector Connect with Main PBA...
  • Page 35 ▶CN802 1. NC 2. 5V_1 3. TX 4. RX 5. DISPLAY_RESET 6. 5V 7. 5V_1 8. 12V 9. POWER KEY 10. GND ▶CN201 1. 5V 2. RESET 3. BKGD 4. GND 30 _ PCB Diagram...

  • Page 36: Wiring Diagram

    6. WIRING DIAGRAM 6-1. WIRING DIAGRAM ▶ This Document can not be used without Samsung’s authorization. REFERENCE INFORMATION BLACK BLUE GREEN GRAY NATURAL ORANGE PINK SKYBLU SKYBLUE VIOLET WHITE YELLOW Wiring Diagram _ 31...

  • Page 37: Reference

    Color Buyer F-Code 1 F-Code 2 F-Code 3 ① Product type (CAN NOT CHANGE) : Auto Washing machine (SAMSUNG’s Guide Line) ② Market Claim Capacity : 45 = 4.5 cu.ft. ③ Intro. Year : T - Intro.Year : 2020 ④ Feature Table : 3 – AC motor 4 - Best ⑤...
  • Page 38 This Service Manual is a property of Samsung Electronics Co.,Ltd. © 2020 Samsung Electronics Co.,Ltd. All rights reserved. Any unauthorized use of Manual can be punished under applicable Printed in Korea International and/or domestic law.

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