Lights blinking on dash

KitchenAid Dishwasher ran fine in previous cycle. Turned off breaker to do some carpentry work on the cabinetry. After resetting breaker the dishwasher started by itself for a couple seconds when. The door was pushed shut. In Progress Lights area (far right of control panel) the "Washing" lights comes on and dishwasher runs dry for a couple seconds and then shuts down quickly and has in the Cycle Lights Section (far left of control panel) alternatively blinking lights ("Heavy Duty" & "Normal") flashing with no further activity from dishwasher.
Have unplugged hoping to reset but does not help. "Cancel" button does not help either by pressing or holding. Thinking blinking lights hopefully is a Trouble Code?
Thanks in advance,
Jud