Product review (5 stars): Fix it yourself!
My dishwasher just stopped one day.  I took it completely apart with the help of a site that specializes in helping consumers repair their appliances.  I took my time and was careful.  This $15 part and the videos saved me a $150 service call or a brand new dishwasher...which I was shopping for when I came across the repair site.  My wife is still stunned that I fixed it!!