Answer to: How do I get an awful, rotten smell out of my dishwasher?I had the same problem with my Samsung dishwasher. The problem is the "check valve" that doesn't function properly. It's just a little rubber valve that's supposed to stop any water from coming back from the hose into the washer. Just google "samsung dishwasher check valve" and you will see the photos. I replaced mine for $15 and the smell is gone. Forever.