I used AppliancePartsPros web site to diagnose problem. I checked for power and then checked for blockage in drain line. I disconnected drain pipe from garbage disposal and connected wet/dry vacuum. This removed all water from dishwasher and drain line proving it wasn’t blocked. I ordered drain pump and received in just four days. Replacing pump and reconnecting drain line only took five minutes. The only way it could have been easier, is my wife doing it. End of story.