You finish a dishwasher cycle, open the door, and discover standing water at the bottom of the dishwasher. Or maybe the dishwasher stops mid-cycle and refuses to drain completely. A dishwasher that isn't draining is a common appliance problem. Sometimes the solution is relatively simple, such as cleaning a clogged filter. Other times, the problem may involve the drain pump, hose, garbage disposal connection, or another component that requires professional diagnosis. Here are