Samsung WA40A3005AW/A4 Service Manual
  1. Manuals
  2. Brands
  3. Samsung Manuals
  4. Washer
  5. WA40A3005AW/A4
  6. Service manual

Samsung WA40A3005AW/A4 Service Manual

Washing machine top-loading type
Hide thumbs
Table of Contents

Advertisement

Quick Links

SERVICE
WASHING MACHINE (TOP-LOADING)
WA3000A
WASHING MACHINE
TOP-LOADING TYPE
BASIC NAME : WA3000J
BASIC CODE : WA40J3000AW/A2
MODEL NAME : WA3000A
MODEL CODE : WA41A3000AW/A4
WA40A3005AW/A4
Manual
1. Safety Instructions
2. Features and Specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagram
6. Wiring Diagram
7. Reference
CONTENTS

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the WA40A3005AW/A4 and is the answer not in the manual?

Questions and answers

Related Manuals for Samsung WA40A3005AW/A4

Summary of Contents for Samsung WA40A3005AW/A4

  • Page 1 WASHING MACHINE TOP-LOADING TYPE BASIC NAME : WA3000J BASIC CODE : WA40J3000AW/A2 MODEL NAME : WA3000A MODEL CODE : WA41A3000AW/A4 WA40A3005AW/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.

  • 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. • 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 completely 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. 4 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. 4 If not inserted into the bracket-heater, it touches the drum and causes noise and electric leakage. AFTER SERVICING WARNING • Check the wiring. 4 Ensure that no wire touches a rotating part or a sharpened part of the electrical harness. • Check for any water leakage.
  • 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 lifetime. • 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 lifetime. • 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 lifetime. • Do not press a control button using a sharp tool or object. 4 This may result in electric shock or damage to the product. WHILE SERVICING CAUTION • 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 exerted. • Check if there is any residue that shows that liquid entered the electric parts or harnesses. 4 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. 4 Do not lay it down on its front. This may result in the inside tub damaging parts. 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 • 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. 4 Vibrations can shorten the lifetime of the product.

  • Page 7: Features And Specifications

    2. FEATURES AND SPECIFICATIONS 2-1. FEATURES 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 (cm) C. Height with Door open 150.5cm D. Depth 74.4cm WATER PRESSURE 20~116psi (137~800kPa) WEIGHT 58kg (127.9 lb) CAPACITY 4.1/4.0cu.ft WASHING 120V 700W HEATER RATING SPIN 120V 400W DRAIN 120V SPIN REVOLUTION 700rpm 6 _ Features and Specifications...

  • Page 9: Detail Features

    2-3. DETAIL FEATURES Grade WA41A3000AW/WA40A3005AW WA40J3000AW Image Capacity(DOE) 4.1/4.0 AquaJet Diamond interior drum Pure Cycle Main Spec. Washing Cycles ® Pulsator material Max rpm Motor AC Motor AC Motor Color Neat White Neat White Center display Jog Dial Squall Jr Same Squall Jr Same Main display LED color Design Door Lid TC...

  • Page 10: Options Specifications

    2-4. OPTIONS SPECIFICATIONS Item Item Name Code No. Remark HOSE-HANGER DC61-00224A Default MANUAL-BOOK DC68-03520F Default CABLE TIE 6501-000121 Default CAP W.V DC61-10449Q Default Note • Customer can purchase Water supply, drain hoses and assy leg support from a service center. 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: 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 6 screws holding the control panel assembly and separate cover panel.
  • 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. 8. Pull the PCB (s). 9. Separate 5 hooks with (–) driver. 1.
  • Page 14 Part Figure Description 1. Remove the 4 screws holding the door lid TC Door Assembly 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. 5.
  • 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. Separate 2 clamps. 3. Remove COVER PUMP. Drain-Pump 4. Separate 2 pins. 5.
  • 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 6. Remove the shaft with the jig wrench. - Release the nut in a clockwise direction. - Fasten the nut in a counterclockwise direction. 7. Place the main body so that the front frame faces upward and remove the 2 bolts holding the saddle with a 10mm wrench. When you place the washer on the floor, take care that you do not damage or scratch the product.
  • Page 19 Part Figure Description 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. INSTRUCTION OF FUNCTION ■ Control Panel 01 Cycle Selector Turn the Cycle Selector to select the desired cycle. The indicator by the cycle name lights up. 02 Display Provides instructions and diagnostics while keeping you updated on the cycle status and time remaining. Press the button repeatedly to cycle through the different water temperature options. • H ot - Whites and heavily soiled, colorfast items.
  • Page 21 ■ Child Lock Child Lock disables the START/PAUSE button while the washer is operating. This is to prevent children from playing with the washer. Activating the Child Lock function Press and hold the Temp. and Water Level buttons simultaneously for approximately 3 seconds. • C hild Lock disables the START/PAUSE button while the washer is operating. • T he Child Lock Indicator blinks. ■ ATC (Auto Temperature Control) ATC is the control function that the washer controls water temperature with temperature sensor (thermistor). NOTE Because there are numerous water temperatures depending on the customer’s environments (cold areas, warm areas, various water temperatures, settings of heater temperature, etc.), ATC function in our washer maintains the certain level of wash temperature to output the best washing performance at each cycle.

  • Page 22: Code Mode Information

    4-2. CODE MODE INFORMATION Switch Code Door Code Communication Code (Main Relay Code) Water Level Sensor Water Supply Code Water Leakage Code Overflow Code Drain Code Unbalance Code Motor Driving Code Mems PBA Code Detected Door Code & TMR Sensor Code Door Code Temperature Sensor Code Water Supply Code...

  • Page 23: Diagnostic Code & Corrective Action

    4-3. DIAGNOSTIC CODE & CORRECTIVE ACTION Check Code Description Corrective Action (Diagnostic code Image) • C heck if a HOT LED flashes during the boiling course. • A s this code occurs because the door is opened, close the door. Lid is open when Hot LED flash • S ince 120V power is connected, check if the power cord is washer is running. disconnected or check the insulation status and repair it if necessary. • I f the main PBA door detection circuit is defective, replace it. • C heck the wire connections and terminal contacts between the sub and main PBAs.
  • Page 24 Check Code Description Corrective Action (Diagnostic code Image) • C heck if there is any alien substance inside the draining pump motor. Your washer is not • C heck the natural drain in the same manner. draining. It can also • C heck if there are any incorrect connections or broken wires. Low LED Flash mean that the unit • I f the machine malfunctions intermittently when the wash senses a small clog tub water temperature is high, replace the pump.
  • Page 25 ▶ These are common troubleshooting procedures for each drum-type washer Code mode. For detailed information, refer to the general repair scripts. Code Type Code Mode Countermeasure Corrective Actions Description of Photo Check if the water ▶ C heck the water level sensor frequency. level 1. C heck it after the water level sensor sensor is defective. • C heck the water level sensor terminal and the connector are connected.
  • Page 26 Code Type Code Mode Countermeasure Corrective Actions Description of Photo Check the drain pump resistance. This may occur when (Check whether the impeller of the drain the drain pump is • I f the drain pump revolutions are pump motor are restrained by foreign defective. restrained due to freezing in the material . winter season, check the method to Resistance : 13.5 ~ 16.5Ω) remove the freezing and remove as This may occur due directed.
  • Page 27 Code Type Code Mode Countermeasure Corrective Actions Description of Photo 1. C heck the resistance Hot LED Flash This may occur when for Reed SW (Checking Part:White- Green Wire) the door switch is - R esistance:Approx 0.2Ω defective. This may between the terminals of occur when the main • C heck the Door-Lock SW terminal Reed SW.

  • Page 28: 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, “Low LED” will flash 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. • M ake sure inlet hose connections are not leaking. Check for rubber gasket damage due to over tightening. • C heck standpipe for leak. Wrap a dry rag around the standpipe opening. If rag becomes wet, leak is fault of home plumbing. Be sure the standpipe is capable of accepting the flow of water from the washer. • Make sure end of drain hose is correctly inserted and secured to drain standpipe. Leaking • Check internal hose connections (fill, drain systems, dispenser hoses & clamps).
  • Page 29 Problem What To Do • P erform Quick Test Mode. Check Door Lock. Check the resistance for door lock. if Approx 0.2 ohm between the terminal of contact (white-Red wire), Will Not Lock and if not, change PCB(refer to PCB connector check). • Read Lock Switch and PCB . (Refer to PCB Connector Check.) • F lash “HOT LED ”. Turn off and on the unit. If “flashing HOT LED” keeps illuminating, check PCB and Door Lock Switch. • Read Lock Switch and PCB . (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). • Option and Function buttons respond differently according to each cycle. • C hild Lock is being activated. To exit, hold down Spin level key and soil level key simultaneously until it sends out No Key Operation a beeping sound. • W hen “End“ illuminates on the display, only Power button works. Press Power button and make new cycle selections. • Check for any kink on the drain hose. If any, straight it out. • Check for any restriction in the drain hose. • C lose the door and press the Start/Pause Button. For safety reasons, the washer does not tumble or spin with the door open. • When it is freezing outside, check if it is frozen inside the drain hose.

  • Page 30: Q&A

    4-5. Q&A Q. What should I do when Information A. When the Information Code is displayed, press the Start/Pause dial and Code (“HOT LED”) flash? then restart the cycle. For more information, refer to the Owner’s Manual. Q. There is a small amount of water A.

  • Page 31: Pcb Diagram

    5. PCB DIAGRAM 5-1. MAIN-PCB ASSY MODULE ▶ This Document can not be used without Samsung’s authorization. Location Part No. Function Description Location Part No. Function Description CN12 SUB COMMUNICATION communication with sub PBA LOAD CONTROL control the load JTAG...

  • Page 32: Connector & Relay Terminals Description (Main-Pcb)

    5-2. CONNECTOR & RELAY TERMINALS DESCRIPTION (MAIN-PCB) ▶ This Document can not be used without Samsung’s authorization. ▶ CN1 LOAD CONTROL PIN1 – RINSE ▶ CN3 ▶ CN8 PIN2 – HOT PIN1 – 12V ▶ CN2 PIN1 – AC1(L) PIN3 – COLD ▶ CN7 MOTOR CONTROL PIN2 – GND PIN1 – N PIN2 – AC2(N) PIN4 – CLUTCH PIN1 – MOTOR LEFT...
  • Page 33 Check Resistance at Pin #3 and #9 of CN10 Check Frequency at Pin #6 and #9 of CN10 Thermistor Check Tester Check = 47㏀ Reset frequency = 25.6KHz Water Sensor Check Check Resistance at Pin #7 and #9 of CN10 Check Voltage at Pin #8 and Pin #1 of CN10 Reset frequency = 25.6KHz When spin mode = 5V DC TMR Sensor Check Check voltage at Pin #5 and Pin #1 of CN10 Check Voltage at Pin #1,2,3 of CN1 and Pin #3 of CN8 Water Valves Check When spin mode and Extra Large lamp lighting up = about 2.9V DC When Valves operates = AC 120V Check Voltage at Pin #1 of CN7 and Pin #3 of CN8 Check Voltage at Pin #4 of CN1 and Pin #3 of CN8 Clutch-Motor Check Check Voltage at Pin #2 of CN7 and Pin #3 of CN8 When Motor operates = AC 120V Motor Check When Wash mode Motor operates = AC 120V Check Voltage at Pin #1 & 3 of CN8 Check Voltage at Pin #1 of CN7 and Pin #3 of CN8 AC Power Check Tester Check = AC 120V When Spin mode motor operates = AC 120V Check Voltage at Pin #6 of CN1 and Pin #3 of CN8 Pump Check When Drain Pump operates = AC 120V PCB Diagram _ 31...

  • Page 34: Sub Pcb Module

    5-3. SUB PCB MODULE ▶ This Document can not be used without Samsung’s authorization. ② ⑥ ⑥ ⑤ ⑤ ⑥ ⑤ ⑤ ⑤ ⑤ ⑤ ⑤ ④ ⑤ ⑤ ⑥ ⑤ ⑤ ⑤ Location Part No. Function Description Micom201 Control Function...

  • Page 35: Connector Description (Sub-Pcb)

    5-4. CONNECTOR DESCRIPTION (SUB-PCB) ▶ This Document can not be used without Samsung’s authorization. CN801 COMMUNICATION ▶ PIN2 – 3.3V PIN3 – TX_TO_MAIN PIN4 – RX_FROM_MAIN PIN5 – RESET CN201 WRITING ▶ PIN6 – 5V PIN1 – 5V PIN7 – GND PIN2 – GND PIN8 – 12V PIN3 – RESET PIN9 – POWER_KEY_TO_MAIN PIN4 – BKGD PIN10 – GND PCB Diagram _ 33...

  • 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 34 _ Wiring Diagram...

  • Page 37: Reference

    Feature Table Color Intro. Product Type Capacity (by Market) Intro. Year Buyer Region. or TYPE Grade F-Code 1 F-Code 2 F-Code 3 Color Code W A 4 / A 4 ① Product type(CAN NOT CHANGE) : Auto Washing machine (SAMSUNG’ s Guide Line) ② Market Claim Capacity : 4.1 cu.ft ③ Intro. Year : A - Intro. Year : 2021 ④ Series : Grade 3 : Entry ⑤ Feature Table : 0 : Pulsator ⑥ Intro. Region. Or TYPE : A - N.America ⑦ Color : W - White ⑧ / : CBU ⑨ Buyer : A4 : USA/CANADA Reference _ 35...

  • Page 38: Nomenclature(Wa40A3005Aw/A4)

    Series Feature Table Color Intro. Product Type Capacity (by Market) Intro. Year Buyer Region. or TYPE Grade F-Code 1 F-Code 2 F-Code 3 Color Code W A 4 / A 4 ① Product type(CAN NOT CHANGE) : Auto Washing machine (SAMSUNG’ s Guide Line) ② Market Claim Capacity : 4.0 cu.ft ③ Intro. Year : A - Intro. Year : 2021 ④ Series : Grade 3 : Entry ⑤ Feature Table : 5 : Agitator ⑥ Intro. Region. Or TYPE : A - N.America ⑦ Color : W - White ⑧ / : CBU ⑨ Buyer : A4 : USA/CANADA 36 _...
  • Page 39 © 2020 Samsung Electronics Co.,Ltd. All rights This Service Manual is a property of Samsung Electronics Co.,Ltd. reserved. Any unauthorized use of Manual can be punished under applicable Printed in Korea International and/or domestic law.

Table of Contents

Save PDF