reply to my own post. I removed water from dishwasher and then pulled dishwasher. I flipped DW over and checked drain hose for obstructions found none. I next removed clamp holding drain pump. When I inspected I found an obstruction in the pump and back flow flapper A piece of plastic and vegtables. Cleaned out and reinstalled pump and reinstalled DW. Unit works like new. Most time consuming part was un-installing and reinstalling DW. This was an easy job. Like to say I saved $300. Technician would have charged me for a service call and most lilely a new pump.