Product review (5 stars): If your dishwasher isn't filling up like it should, replace this part
I have a Whirlpool GU2700XTSS1, and replacing this part totally solved my problem.  The water was not filling up all the way like normal and making more noise when operating.  I tried cleaning the old part and sump, but still the same problem.  I replaced this fill valve, and it now fills all the way up like it should and works perfectly.  If your water does not come up to the heating element, something is wrong and this is probably the issue.