It seems fine until 2 hours after the end of the cycle (dishes washed fine). Then water starts rising from the bottom. I cup it out, hours later it is back. I cup it out again and it doesn't come back. I have run the dishwasher twice in 2 weeks and this problem happens. The plumbers said it was the appliance; the appliance guy said he fixed it but didn't. I don't want to waste any more money. (plumbing or appliance)?

dflanary@si.rr.com, March 2009

You say after cupping out the water a couple times it doesn't come back until you use it again? It sounds like water is coming back in through the drain pump.

When the machine pumps water out from the dishwasher at the end of the cycle (into the drain pipe or disposal under the sink usually) the hose stays full of water. There is a check valve on the pump that prevents this water from coming back into the dishwasher but over time it can get a little leaky.

Sometimes you can fix it by cleaning it off, and sometimes you just have to get a new one. A search online using your model number should turn up the parts you need.

StanStill, March 2009