Frigidaire 5304525221 Dishwasher High Limit Thermostat OEM Part

So I replaced the hi-temp thermostat and the problem is fixed.

My Frigidaire DW periodically stopped mid-cycle before the detergent door opened. I could hold the cancel button for 3 seconds, the water in the tub would drain and then I could start a new cycle. This would happen every few days. After about two months, it quickly worked completely. There were lights on the controls and I could hear switch click sounds when I would press the Start button, but the DW would not run. I talked to APP and others about the issue. The general opinion was the main board needed to be replaced. I also saw in my research it could be the thermostat, the door latch, and/or the control button board. I bought all four parts to be safe. I replaced the main board and the DW did exactly the same thing. As I was swapping the original board back in, I noticed the white pair of wires going into the door latch were darkened. I moved the four wires going into the door latch and noticed the plastic connectors plugged into the latch made a crunching noise when wiggled. I took the latch off and found the wires and white plastic connectors to the latch were burnt and melted in places. Obviously, there was a short. I used the new latch part kit to fix the issue. The kit comes with new wire terminals and heat-shrink insulation. I cut off the original, burnt wire connectors, and a bit of darkened wire, crimped on the new terminals, used a heat gun to put on the insulation and reassembled the DW door. That solved it and the DW is operating normally.

The thermostat went bad and the temperature in the dishwasher rose high enough to distort the heating element. The distorted heating element touched the bottom of the dishwasher and caused some of the plastic to melt. Thankfully, it did not melt through! With the help of AppliancePartsPros.com videos, I was able to easily replace both the thermostat and the heating element.