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I have a Whirlpool Quiet Partner II model DU1055XTVD It has started making a very loud humming noise almost as soon as I turn it on and hasn’t been washing the dishes as well as before. I was trying to see if maybe the filter was dirty, but I don’t know where it is. In all the videos I see online the filter can easily be seen and taken out, but on my dishwasher I don’t see anything like that.

Hi @jlittlecar2 , It appears that the filter in your model has a screw holding it in place. Here’s is the location of the filter in your dishwasher. It is part #1 - pump and motor parts diagram