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Older Kitchenaid Dishwasher doesn't fully drain and smells

I have a older Kithchenaid Dishwasher Model# KUDB220T0,Serial# FE93198827 that developed a bad odor and I then noticed standing water in the bottom well. Upon investigation the "screen" was coated/blocked with food remnants even though plates get scraped before loading. I cleaned the screen and used a "orange/citrus" drain and disposal cleaner in it. It appeared to have fixed the odor problem,but the machine doesn't fully pump out the shallow well around the now clean screen(unless I rototate the manual cycle knob/timer to the end of a cycle again to start the pump,then it empties the machine). The smell also returns if I don't get the machine empty. I suspect due to the age that the timer may be ending the "pump" potion of the cycle too soon. Any help will be greatly appreciated.
Thanks, Jay

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  • jpgoodnu Mar 11, 2009

    Thanks For the advice,BUT I did remove the kick panel and disconnected the drain hose and check valve. There was no blockage and only very slight "scum" inside the hose. I am able to look down the sink drain and see the drain water being pumped out with decent force,but the machine just doesn't fully drain on its own,always leaves a inch or 2 in the bottom of the well,unless I manuall turn the knob back to the end of a cycle again to restart the drain pump.



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Hi Jay. Remove the lower front panel and you will see the drain hose. On the machine end of the drain hose is a small drain pump. Disconnect the hose and the pump and you will most likely find a partial blockage in the form of a piece of glass or something preventing a total drain.

please mark this answer as a fixya!

Posted on Mar 09, 2009


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