Open the control panel, remove the control panel ribbon cable from the control board and check the tracks in the ribbon cable for a hairline cracks. A magnifying glass might help.
More likely the problem is a bad control panel, but there is a small chance for the control board to be bad as well.
- The control board Part number: AP4097369
- The control panel Part number: AP4424899
Here are the breakdown diagrams and Replacement parts for MAYTAG MEW5530DDW | AppliancePartsPros.com