Question about Dishwashers
It just stopped in the middle of a cycle.
Power is going to the machine but there are no lights. The unit is dead!
Thermal fuse or switch?
SOURCE: Kenmore Elite Dishwasher Problem
The dishwasher should have a thermal fuse mounted to the control board behind the operator console. It is a small silver colored device
attached to a white plactic bracket. In some model dishwashers the
wrong gage wiring was used causing the wires to heat up and trip the
thermal fuse. There was no apparent risk of fire or anything like that,
but the thermal fuses didn't tolerate the heat differential too well. A
fix for the problem was to purchase a thermal fuse replacement kit
(found at most appliance repair stores) that had thicker wires. The
part number for the thermal fuse kit is 959376 and the price is $16.85. You can find it at
repairclinic.com. Order on line and have the part shipped directly to
you. Now...to access the control board perform the following:
1. Turn off the main breaker to the dishwasher. This is important. Even though the dishwasher is not running, the control board still has live voltages present.
2. Open dishwasher door and remove the top screws that hold the console in place. You shouldn't have to remove the lower screws unless you plan on removing the entire door panel.
3. The control panel should pull off from the front enough to where you can access the control board. There is a thermal fuse mounted on the board with two wire leads going to it. The fuse is silver in color and mounted to a plastic bracket which is mounted to the control board.
4. Cut the wires on the old fuse and splice the new fuse kit to it. Leave plenty of wire to accommodate. There will be instructions included with your replacement kit. Ensure you follow the direction thoroughly and tighten the wire lug screws securely.
NOTE: Do not attempt to reuse the existing wires by simply unplugging the old fuse and replacing it with the new one (been there). The fuse will eventually blow again. Follow the instructions provided and you can't go wrong.
If you have any further quesitons, or if you run into trouble during your repairs, let me know. Good luck to you.
PS If you do not wish to order on line, take the part number I provided you to any major appliance repair shop and they SHOULD have the part available. This is a known problem and a common fail item.
Posted on Dec 15, 2007
Yeah, I have a similar problem. I tried to go into a suggested diagnostic run, but that didn't yield anything. I tried pushing the Sani-Rinse and Air Dry buttons back and forth a number of times. Didn't help.
At first I thought the lock-on had accidently been engaged, but disengaging the "child lock" doesn't help. The lock-on light comes back on and sometimes blinks rapidly. I"ve counted around 7 rapid blinks at times and 3 rapid blinks at other times--in case that makes a difference. The control panel doesn't work--in other words, the dishwasher does not start, even when I can successfully get other lights to come on. I don't want to spend >$100. for a new control panel if that is not really the problem.
Posted on Apr 10, 2008
SOURCE: Thermal fuse keeps blowing
Mr. Larry (guru?)
The thermal fuse is just that It doesn't protect the circuit from over current although it certainly can open in that case. It is there to protect the board from overheating , thus the term thermal. The dishwasher could be allowing the water to heat too hot or the water heater in the home is turned up too much. The heater could also be shorted to case thus allowing it to be on even though the control is not calling for it especially if the polarity is incorrect to the dishwasher or the relay on the board could be welded closed so that the heater can't turn off even though the thermostat is satisfied. The best thing is to get a person who can check these things. You don't necessarily need to change the board with a fuse. I have changed many fuses with no other problems and verified that the machine was still working years later. sometimes the fuse just blows!
Posted on Jan 27, 2009
The thermal fuse is located in the front control panel where the circuit board is. You need to remove 4 screws(depending on the type of dishwasher you have) and you will see it. Make sure you change everything not just the fuse but the new wires also.
Hope this fixes your problem
Posted on Feb 20, 2009
The first thing I would inspect is the heating element for damage that may beginning to short out.
If the element checks out good, a failing motor could blow the fuse.
If the motor checks out, look for shorts in the wiring both in the door and under the unit.
It is hard to be more specific without knowing the make & model and the dishwashers approximate age (years.)
Good Luck! Please report back what you found, OK?
Posted on May 26, 2009
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