Water in dishwasher did not heat up. Dishes came out dirty and greasy. Some fungus started to grow in dishwasher.

ApplianceFrigidaire Dishwasher


Level of DifficultyEasy

Time to do repair30 - 60 mins

Age of Appliance5 - 10 years

Tools Pliers
Screw drivers

Ewout From Bozeman, MT

Dec 02, 2010

39 out of 43 people found this instruction helpful

Unplugged the dishwasher. Closed and disconnected the water supply. Removed two screws that attached the dishwasher to the countertop. Pulled the dishwasher out from underneath the countertop. Laid the dishwasher on its side to access the bottom. The high limit thermostat had shorted out and showed signs of electrical burn. I removed the high limit thermostat by unscrewing the single screw that holds it in place. I then pulled the two electrical terminals off the high limit thermostat . One terminal (i.e. small electrical plug connecting electrical wire to high limit thermostat) was burned badly. I cut it off the wire and attached a generic terminal bought at local hardware store (six for $3). The other terminal was fine. I plugged the new high limit thermostat in and attached it with the single screw to the dish washer. Put the dishwasher back in place. Test ran dish washer and dishes came out shiny, clean and dry. Done.

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Diagrams and Parts List for this repair

Part PhotoPart DescriptionPriceAvailability

High Limit Thermostat

Part Number: PS420575

In Stock