I did a diagnostic check on the control board that told me the door switch was bad. Checked the door switch with an ohm meter and it was good. Went to board and ohms from door switch wires were checking good. Looked on the internet under the model of my dishwasher and they reported a lot of trouble with the main circuit board. I ordered a new one and installed it. Problem solved. The board was 50.00 cheaper at AppliancePartsPros vs the local dealer. Happy ending....