How to Repair a Washing Machine Control Board

By sarvottam

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Introduction: The washing machine is a crucial appliance in any household, making laundry chores more convenient and efficient. However, like any other electronic device, washing machines can encounter issues over time. One of the common problems is a malfunctioning control board, which can disrupt the machine’s operation. In this comprehensive guide, we will walk you through the process of repairing a washing machine control board. We will cover troubleshooting techniques, identifying common problems, and step-by-step instructions to fix the control board. Remember, safety is essential when dealing with electrical components, so if you are unsure or uncomfortable, it is best to seek professional assistance.

Understanding the Washing Machine Control Board

The control board, also known as the PCB (Printed Circuit Board) or electronic control unit, is the brain of the washing machine. It receives signals from various components, such as the timer, door switch, and water level sensor, and controls the machine’s functions accordingly. When the control board malfunctions, it can lead to issues like the machine not starting, not completing cycles, or displaying error codes.

  1. Symptoms of a Faulty Control Board:
    • The washing machine doesn’t power on.
    • The machine starts and stops abruptly during a cycle.
    • The control panel displays error codes or becomes unresponsive.
    • The machine doesn’t complete cycles or shows incorrect cycle times.
  2. Safety Precautions:
    • Before attempting any repair, disconnect the washing machine from the power supply to avoid electrical hazards.
    • Work in a well-lit and ventilated area, and wear appropriate safety gear, such as gloves and safety goggles.

Troubleshooting the Control Board

Before proceeding with repairs, it is essential to diagnose the issue accurately. Here are some troubleshooting steps to help identify if the control board is indeed faulty:

  1. Check for Power: Ensure that the washing machine is receiving power by testing the power outlet or trying a different power source.
  2. Inspect for Burnt Components: Visually inspect the control board for burnt or damaged components. Burnt spots, visible cracks, or a burnt smell are indications of a faulty board.
  3. Error Codes: Note any error codes displayed on the control panel, as they can provide valuable information about the issue.
  4. Testing Components: Test other components like the door switch, timer, and water level sensor to ensure they are functioning correctly. A faulty component can sometimes mimic a control board issue.

Repairing the Control Board

If you have identified that the control board is faulty and are confident in your repair skills, you can attempt to fix it yourself. Keep in mind that the specifics of the repair may vary depending on the washing machine model and brand. Here is a general outline of the repair process:

  1. Gather Information: Obtain the washing machine’s service manual or technical documentation for your specific model. This will provide you with the necessary information for disassembly and part identification.
  2. Disassembly: Unplug the washing machine and carefully remove the control panel and back panel to access the control board.
  3. Inspect and Clean: Thoroughly inspect the control board for burnt or damaged components. Use a magnifying glass if necessary. Clean any dust or debris from the board.
  4. Component Replacement: If you have identified specific faulty components, you can attempt to replace them. Some components, such as capacitors or resistors, are relatively easy to replace with basic soldering skills.
  5. Soldering: Use a soldering iron to remove the faulty component and solder the replacement component onto the board. Take care not to overheat the board during the soldering process.
  6. Testing: After replacing the component, reassemble the washing machine and test it to ensure the control board is functioning correctly.

Seeking Professional Help

Repairing a washing machine control board can be challenging, and if you are not familiar with electronics or lack the necessary tools, it is best to seek professional help. Professional technicians have the expertise and equipment to diagnose and repair complex electronic issues safely.


Repairing a washing machine control board can save you money and extend the life of your appliance. However, it requires technical knowledge and proper safety precautions. If you’re confident in your skills, follow the troubleshooting steps and repair guidelines. Otherwise, seek assistance from a qualified technician to ensure a safe and effective repair.


1. Can I repair the control board if I don’t have electronics experience? Repairing a washing machine control board requires some electronics knowledge and soldering skills. If you’re unsure, it’s best to seek professional help to avoid further damage.

2. What are the common causes of control board failure? Control board failure can be caused by power surges, moisture, loose connections, or component wear over time.

3. Can I use a universal control board as a replacement? Using a universal control board as a replacement may not be compatible with your specific washing machine model. It’s essential to use the correct replacement part for optimal performance.

4. How can I prevent control board issues in the future? To prevent control board problems, avoid overloading the washing machine, use proper detergents, and ensure proper electrical connections.

5. Is repairing the control board cost-effective compared to buying a new washing machine? Repairing the control board is generally more cost-effective than buying a new washing machine, but it depends on the extent of the damage and the cost of replacement parts.

6. Can power fluctuations damage the control board? Yes, power fluctuations, such as voltage spikes, can damage the control board and other electronic components in the washing machine.

7. How often should I clean the control board? Cleaning the control board regularly to remove dust and debris can help prevent overheating and potential issues.

8. Are control boards covered under warranty? Control board warranties vary depending on the manufacturer and the specific washing machine model. Check your appliance’s warranty documentation for details.

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