How to Replace a Door Latch Assembly
The dishwasher won't start unless the door latch assembly is working properly. If the latch assembly is broken or the microswitch that detects the door position (open or closed) isn't working, replace the door latch assembly—sometimes referred to as the door switch—with the proper dishwasher replacement part. This dishwasher repair guide offers detailed instructions for accessing and replacing the door latch assembly in a dishwasher.
Less than 30 min.
Before you begin
Wear safety gloves to protect your hands.
Warning: Undertaking repairs to lower lawn-care equipment can be hazardous. Use the proper tools and safety equipment noted in the guide and follow all instructions. Do not proceed until you are confident that you understand all of the steps and are capable of completing the repair. Some repairs should only be performed by a qualified technician.
Step 1: Shut off electrical power
Flip the house circuit breaker switch to the Off position to disconnect electrical power to the dishwasher. To verify that power is disconnected, make sure the display on the control panel can't be activated.
Warning: Shut off electricity to the dishwasher before accessing internal components.
Step 2: Remove the inner door panel
Remove the Torx screws from the inner door panel that secures the control panel to the front of the dishwasher door.
Step 3: Fold down the control panel
Remove the top screws from the inner door panel to loosen the top of the inner door. Fold the control panel forward and down to access the door latch assembly.
Tip: If you can't access the door latch assembly without removing the control panel, note how the ribbon wire harness plugs into the control panel—the harness usually has a locking tab or similar mechanism that keeps it in place. Release the tab and then disconnect the control panel from the wire harness.
Remove screws from the top of the inner door panel to loosen the panel.
Step 4: Remove the door latch assembly
Release the tabs that secure the door latch assembly to the control panel.
Press the locking tab that secures the wire harness to the door latch assembly. Unplug the wire harness
Release the tab on the wire harness that's connected to the microswitch and disconnect the wire harness from the microswitch.
Remove the door latch assembly and discard it
Step 5: Attach the new latch assembly to the control panel
Snap the door latch assembly into place on the control panel. The locking tabs click when the assembly is in the right position.
Step 6: Connect the wire harness to the microswitch
Plug the wire harness into the microswitch on the door latch assembly. Push the plug in fully to engage the locking tab. Tug gently on the wire harness plug to make sure it's seated properly and that the locking tab is engaged.
Step 7: Reconnect the control panel
If you removed the control panel earlier, reconnect the wire harness and snap the locking tab into place.
Position the control panel on the top of the dishwasher door. Replace the screws to secure the control panel to the inner door panel of the dishwasher. Close the door do make sure it shuts and latches properly.
Step 8: Reattach the inner door panel
Install the screws in the inner door panel. Firmly tighten the screws but don't overtighten, which could strip the threads.
Step 9: Restore electrical power
Flip the house circuit breaker switch to the On position. The dishwasher display should light up after you restore electricity. Test that the dishwasher control buttons work.