GSD5112F00AA General Electric Dishwasher

I removed the four screws holding the screen and molded plastic cage inside the rear of the dishwasher to expose the check valve assembly. I then unscrewed the piston and nut assembly with my hand and replaced it with the new one. I found that the rubber cone shaped valve on the old piston and nut assembly was entirely disintegrated. T ... Read more his easy repair solved the problem.

replaced rack, no repairs required

Found a forum on the internet that said the Air Check Valve located under the screen on the bottom of the back wall inside the wash compartment may be the culprit. Took it out by using nut driver to remove screen, and twisting the part out. The seal was deteriorated. Repleacing the part was simply the opposite, and very easy.

... Read more I also replaced the screen on the floor of the wash compartment because the rubber was deteriorating there too. Here I had to remove the spray arm by carefully prying the locking tabs outwards and lifting the entire spray assembly upwards. Then, then plastic covers need to be unscrewed and removed. The new part had the plastic cage molded into it. So I discarded the old plastic cage. There are a couple of retaining clips that are a little tricky to get off the plastic posts. But, they can be removed by prying a standard screw driver underneath and working them off the post. Do not break the plastic post, and save the retaining rings. The new part does not come with any screws or retainers, so you will need to re-use them. Simply, place the new screen in position, slide on the retaining clips, and screw down the cage. The spray assembly is just slid back onto the shaft and snaps into place. A lot of writing, but was rather simple to do. 15-20 minutes.