Question about Maytag 24 in. MDB6657 Built-in Dishwasher

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Keeps running; won't stop

My MDB6657 will keep running and won't stop unless stopped manually or open the door. If I then close the door, it will continue running. I've already replaced the control panel to no avail. Suggestions?

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  • gantos Sep 12, 2008

    Thanks for the quick response! I understand your description, but I have yet to discover anything that remotely resembles a relay anywhere other than on the control assembly. I did find some good information on my model here, I am no expert, but I do not see on the schematic where there's some sort of timer relay that would determine how long a cycle should run (assuming that's the problem).

    What about the thermistor? I've read in other forums that some dishwashers will not complete a cycle if the water is not hot enough. This dishwasher is supposed to post-heat the incoming water if it is determined not to be hot enough. Your thoughts?

  • Anonymous Mar 17, 2014

    Every light has come on along the top panel when I switch on and I can't set a programme . It does still work, but won't stop unless I open the door. Any ideas please ?


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The control panel most likely has control over one or more relays that open or close depending on the programmed action.  The relay need not be the typical electromagnetic kind but could be solid state and produce the same results. It sounds a lot like one of the relays has welded its contacts together (or shorted, in the case of a solid state device) so the control panel and settings no longer have dominion over its actions.
I'm not sure where to look in your machine though.
If you are lucky (well, while being unlucky) there may be a schematic on the housing of the machine that could give you some clues about the location of these control elements. 

Posted on Sep 12, 2008

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