How to replace a dishwasher's door switch:

Common dishwasher door switch

This step-by-step guide teaches you how to replace the door switch in your dishwasher. Find the official OEM replacement door switch that fits your appliance.

Disconnect the power source to your dishwasher before you conduct this or any other repair. Either unplug the unit from the wall outlet, remove the appropriate fuse from the fuse box, or flick the appropriate breaker in the circuit breaker panel.

A door switch is a simple on/off mechanism that prohibits the dishwasher from operating when the door is open. Because there are so many different styles and models, there is no one way to replace a dishwasher door switch. However, there are some aspects of door switch replacement that are common to all units. They are presented here for your benefit :

With the power disconnected, begin by removing the inner panel of your dishwasher's door. This is accomplished with the removal of about 6 - 10 screws. Once you have successfully removed the inner panel, locate the switch. There may be another much smaller panel covering the back of the control panel. This smaller panel may be held in place with some additional screws, or with some clips. Dishwasher door switches are only an inch long. Most are black in color and all have metal prongs, called terminals, extending out from the body of the switch. Dishwasher door switches are commonly integrated with the dishwasher's door latch, or mounted to a bracket.

There will be wires attached to your door switch. Carefully remove them. Be aware that some door switches may have a locking clip keeping the wiring harness from coming loose. In this case, there is a protruding lever which must be depressed while the harness is gently pulled away from the terminal.

Use extra caution in removing switches that are a part of the latch assembly or that have a bracket. You do not want to end up breaking the switch's housing because then you will have a bigger problem on your hands.

Replace the old switch with a new one. Reassemble the inner door panel and reconnect your dishwasher to its power supply. Run your dishwasher through a cycle to make sure it is working properly.

For more information about dishwasher door switches: