How do I replace the high limit thermostat. I replaced the heat element and the dishwasher is still not drying. I have heard that this is most likely the culprit.
Answer Sarah, The hi limit thermostat 661566 is mounted to a bracket 3378595 and the bracket is mounted to the dishwasher tub frame. The bracket in made of spring steel and is forced onto the frame member and held there by tension, it also hold the thermostat against the bottom of the tub. The thermostat could be the culprit, but it's not as "finicky" as that, and there are a few other possibilities. The first check needs to be the water temperature in the tub, after the first fill of a cycle, the temperature needs to be at least 120 dgrs. if it isn't there will be probable drying issues. When you remove the kick plate to access the thermostat, you should find the tech data sheet in an envelope taped to the back of the plate or the front frame support. You can program the test mode and check to see if the heater is operating, and go from there.
Dishwasher doesn't appear to be getting dishes cleaned. After running for a couple minutes can reach in and the heating element is cool. Could the element be affecting the cleaning?
It is possible that the heating element is faulty if the unit is set for hi temp wash. The water temperature coming into the unit should be no less than 120-125 degrees and normally if there is a heating issue then the unit would normally flash the clean light 7 times. You can check the heating element to make sure that it is good by doing a resistance check and check the hi limit thermostat for continuity. If they check ok then also check the terminals to make sure that they are good.