Tim H Round Hill , VA January 25, 2015 Appliance: General Electric Dishwasher GSD4620Z04BB Ge Dishwasher Gsd4620z04bb: Water remained after the dishwasher completed its cycles. How to replace Check Valve And Body Assembly. Replaced two parts - body valve & check assembly, piston and nut assembly; a one way rubber valve in the body valve and check assembly was broken - had to purchase the whole item; recommended to purchase at the same time was the piston and nut assembly - good thing because it needed to be replaced, too; it took a while to figure out what was wrong, but i am glad i did because i saved a lot of money fixing it myself; after i made the purchase i saw the note about replacing the piston and nut assembly - it was a saturday and i was able to speak with someone who modified the purchase so i could get both items sent for one shipping charge 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours