How to diagnose a defective dishwasher door switch?

If you have a dishwasher that is not working properly, make sure to check the switch of your dishwasher door. This is a plastic switch located on the machine's door that can be damaged for many reasons. Until and unless the button is repaired, you won't be able to use the dishwasher. Now, who likes to bear with a damaged dishwasher and see their appliance piling up?

That is why it is important to know when your dishwasher switch is going bad and how to fix the problem.

What is the job of the dishwasher door switch?

The switch attached to your dishwasher door serves safety purposes. When the dishwasher is running, there is a risk that it gets open due to pushing forces. To avoid this accidental opening, a switch or lock is installed inside the machine. The washing machine runs when the lid is closed, and the switch is locked.

As soon as the door is opened, the sprayers of the dishwasher stops so that no damage occurs to you. The purpose of the washer door switch is a safe wash for your dishes.

What problems are caused by the dishwasher door switch?

Whenever any component of the dishwasher is malfunctioning, the whole setup is disrupted, and the dishwasher won't work properly or might not work at all. Here are symptoms to look out for if you think the dishwasher door switch is the problem.

  1. The dishwasher won't work at all.
  2. It won't drain the water out of the tub.
  3. Sprayer won't move properly.
  4. The lights are flashing or error code appears
  5. Dishwasher are not dried completely after the cycle.

Ways to diagnose defective dishwasher door switch

You have to perform some tests if you doubt that the door switch is malfunctioning. The tests may vary depending on the trouble you are facing and the model of your dishwasher. So, we have listed some general testing steps that will help you check if the dishwasher door switch is the problem or if there is something else.

Step 1: Unplug your dishwasher from the board or breaker so that the power is disconnected.

Step 2: Locate the switch. It is present on the door so that it won't be difficult.

Step 3: Check if the striker of the door switch is covered with dirt. The striker may not be getting in contact with the switch, and this causes the loss of connectivity.

Step 4: If none of the above is the problem, analyze the power supply to motor or water valve circuits.

Step 5: Test the electric current with the Multimeter. If the reading is not accurate, then the door switch is damaged.

How to fix a dishwasher door switch?

You can always call the repair person if you have diagnosed the switch as faulty. They will replace the switch pretty quickly, so you won't have to wait long to use your dishwasher again. You can also repair on your own at home by taking care of safety.


Never neglect any malfunctioning of your dishwasher and whenever you notice some fault, proceed to test or consult a professional to have minimal damage to your dishwasher.

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