The Brain of Your Dishwasher: How to Fix a Faulty Control Board

fix control board (dishwasher)

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Your dishwasher is one of the most important appliances in your kitchen. It saves you time and effort, and makes it easy to keep your dishes clean and hygienic.

However, like any other appliance, your dishwasher is subject to wear and tear, and it may break down from time to time. One of the most common problems with dishwashers is a faulty control board.

The control board is the brain of your dishwasher, and if it’s not working properly, your dishwasher won’t function as it should. In this guide, we’ll take a look at how you can fix a faulty control board in your dishwasher.

Understanding the Control Board in Your Dishwasher

The control board in your dishwasher is the electronic circuit board that controls the operation of the dishwasher. It regulates the timing of the wash cycles, controls the water temperature, and manages the detergent dispensing.

The control board also receives feedback from various sensors and switches throughout the dishwasher, and uses this information to determine the best course of action for the wash cycle.

Signs of a Faulty Control Board

There are several signs that your dishwasher’s control board may be faulty. The most obvious sign is that your dishwasher won’t turn on or won’t respond to your commands. You may also notice that your dishwasher is running for longer than usual or that it’s not cleaning your dishes properly.

Other signs of a faulty control board include error codes being displayed on the control panel, and strange noises or smells coming from your dishwasher.

Steps to Fix a Faulty Control Board

If you’ve determined that the control board in your dishwasher is faulty, here are the steps you can take to fix it:

Step 1: Turn off the Power

Before you start working on your dishwasher, you need to turn off the power. This can be done by switching off the circuit breaker or unplugging the dishwasher from the power outlet.

Step 2: Access the Control Board

To access the control board, you’ll need to remove the front panel of your dishwasher. This can usually be done by removing a few screws or clips that hold the panel in place. Once the front panel is removed, you’ll be able to see the control board.

Step 3: Check for Loose Connections

One of the most common causes of a faulty control board is loose connections. Check all the wires and connections on the control board, and make sure that they’re secure. If you find any loose connections, reattach them and test your dishwasher to see if the problem has been fixed.

Step 4: Test the Control Board

If you don’t find any loose connections, you can test the control board using a multimeter. A multimeter is a device that measures electrical resistance, and can be used to check whether the control board is working properly.

Follow the instructions that come with your multimeter to test the control board, and replace it if necessary.

Step 5: Replace the Control Board

If you’ve determined that the control board in your dishwasher is faulty and needs to be replaced, you’ll need to order a new one.

Make sure to order the correct control board for your dishwasher model, and follow the manufacturer’s instructions for replacing the control board.

Preventing Control Board Failure

Preventing control board failure can save you time and money in the long run. Here are some tips to keep your dishwasher’s control board in good working order:

  • Clean your dishwasher regularly to prevent build-up of debris and minerals that can affect the control board.
  • Use the correct detergent and amount recommended by the manufacturer.
  • Don’t overload your dishwasher. Overloading can strain the control board and cause it to fail.


The control board is an essential component of your dishwasher that controls the various functions of the machine. If your dishwasher is experiencing problems and you suspect that the control board may be to blame, there are several troubleshooting steps you can take to identify and fix the issue.

Start by checking the power supply and making sure the control board is receiving power. Next, inspect the control board for signs of damage or wear and tear, and replace any faulty components. Finally, if all else fails, you may need to replace the control board entirely.

Remember, if you are uncomfortable working with electronics, it’s best to leave the job to a professional. With the right knowledge and expertise, however, you can save money on repair costs by fixing your dishwasher’s control board yourself.

“If you need help to rescue your home or business appliances, don’t hesitate to contact SOS Appliance  Repairs in  BrantfordLondonWoodstockHamiltonIngersoll and all Southern Ontario area”.

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