Question about Whirlpool 24 in. GU1200XT Built-in Dishwasher

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Whirlpool Dishwasher Model GU1200XT

Does not get upper rack dishes clean. Could there be a pump gone bad in the unit ??

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Check the upper spray arm for debris plugging the spray holes, if clean then pull off lower spray arm and filter screen, and clean and remove any debris found in the sump, check the disposal blades as well. You will need a torx style screwdriver to remove the sump screen on this unit. You can buy a set for under $10 at your local hardware store.

Posted on Feb 23, 2009

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Posted on Jan 02, 2017

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Hello Mike,

What ya want to try is to clean the filter screen on the wash pump and see if that helps to circulate water better resulting in better washability.
This video will show ya how to take apart and clean the wash motor/pump area
http://www.youtube.com/watch?v=iRCCrEwrst8


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