If your dishwasher will not start or turn on, there are a few parts you can check on that might be causing the problem. Replacing one of these dishwasher parts might get your dishwasher back up and running again. Whether your dishwasher is made by Whirlpool, Kenmore, Frigidaire, KitchenAid, Maytag, or Bosch, the parts on your dishwasher will work in a similar way.
First, make sure you are getting power to the appliance. Check your fuse box and switches and make sure the appliance is getting power. Some dishwasher might have a plug. Try to locate the plug underneath a countertop, or in a cabinet by the dishwasher.
If you need to further troubleshoot your dishwasher, you will need to turn off power to the dishwasher. Also shut off the water supply to the dishwasher. Get help for how to move a dishwasher from underneath a countertop.
The thermal fuse is a safety device that keeps the dishwasher from overheating and protects the control board. When the thermal fuse fails, the control panel will not receive power. The thermal fuse is often located underneath the inner door of the dishwasher connected by two wires. You will need to disconnect the wires before testing the part for continuity. If the fuse does not have continuity, that means the fuse has blown and will need to be replaced. Find a replacement Dishwasher Thermal Fuse.
The door switches provides power to the controls when the dishwasher door is closed. It works in conjunction with the door latch. If the door is not closing properly or engaging the switches correctly, then power will not be supplied to the control panel. You will need to test the door switches for continuity and replace if faulty. Shop now for Dishwasher Door Switches.
The door latch helps keep the dishwasher door shut tightly and prevents water leaks while the dishwasher is running. The latch engages with the strike or catch which sits on top of the dishwasher tub. Over time, the catch might fall out of alignment. You can try moving the catch around to see if that fixes the problem and creates a tight seal around the door. If moving the catch around does not fix your problem, then it might be the latch that is defective and will need to be replaced. Shop now for Dishwasher Door Latches.
If only some of the buttons work on your dishwasher’s touch pad, then the touch pad is defective and should be replaced. Some manufacturers only sell the touch pad with the control panel. If this is the case with your part, then replace both the touch pad and control panel. Find a new Dishwasher Touch Pad now.
Main Control Board
The main control board provides power to every component of your dishwasher. If after checking all the parts above and determining they are not the cause for your dishwasher not starting or turning on, then replace the control board. Find a new Dishwasher Control Board.
How to remove your dishwasher from underneath your counter
Look underneath the counter top for screws that hold the dishwasher in place. Remove the screws. You will also need to unscrew the water supply lines to the dishwasher. Have a towel handy as the supply line might contain some residual water. Next, pull the dishwasher slightly away from under the counter being mindful of the drain hose that is still connected to the dishwasher. Disconnect the drain hose where it connects to the dishwasher’s drain pump underneath the dishwasher.