After doing some research with the error code 815 I knew one of the boards was the culprit. However, I wasn't sure if it was the main board or the user interface board. When I read comments here and what others were experiencing with the dishwasher beeping and the code 815 showing up where the minutes usually are, others pointed to the main board as the culprit. I usually don't like to throw parts at a problem unless I am fairly confident that will solve the problem. I'm glad I did. The dishwasher is back working as it should with only a few basic tools. Just be careful unplugging connectors and take your time.