Test the thermal fuse by using a multimeter set to Ohms. 
Once removed, disconnect the wires from the fuse. You’ll want to carefully remove the fuse by applying pressure to the clips above that are holding it in.
Remove the white panel covering the control module and then find the two black wires with a round fuse in between. Disconnect the cable connecting the outside control panel to the inside control module. Remove the outside cover of the dishwasher be removing all star screws. You’ll need a good multimeter to test the thermal fuse for resistance. Innova 3320 Auto-Ranging Digital Multimeter. The other star screwdriver sets are small and flimsy. I like this set because the T-Handle gives you more leverage when taking out a star screw that may be very tight. Always turn off the power at the breaker before doing anything below. Never work on home appliances with the power on. If you get a reading close to zero, then the fuse is good and you have a different another problem which this article won’t address.īefore doing any of this, I need to make a disclaimer. If you get a measurement of 1, that means no electricity can flow and the fuse is blown. 
When you set a multimeter to measure Ohms, it’s measuring a conductor’s resistance to the flow of electricity.
One way to test the fuse is with a multimeter. If the dishwasher had no power, it’s possible the thermal fuse inside has been tripped. I checked the breaker to see if it had tripped, but I found no indication. After a long night of washing dishes, our KitchenAid dishwasher (Model KUDS30IXBL1) had no lights the next morning and wouldn’t turn on.
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