We called a repair person who didn't diagnose the problem, but gave us two ideas about what the problem might be. Because the repair person was so unhelpful, we decided to try to go through with the repair ourselves. We bought a new control panel, because this was the most likely culprit of our problem. Opening the dishwasher was fairly easy and unplugging everything from the control panel wasn't difficult either. We did take a pic of how everything was plugged in in case we had problems with plugging things into the new panel. We referenced the pic once, but had the dishwasher back up and running in under 30 minutes!