Kitchenaid Dishwasher Lights Flashing (couldn't find answer in other posts)

My Kitchenaid dishwasher (KUDS30IVBL2) stopped working and is now blinking the “heavy duty” and “normal wash” lights. I’ve unplugged it and plugged it back in. It didn’t work. I’ve tried searching through this forum and couldn’t find anything that applies to my problem (unless I missed it). Please help! Thanks in advance! (Btw, I’ve tried to look at the tech sheets for different dishwashers and it won’t load.)

I have a KitchenAid KUDW03CTBL2 Dishwasher, and just today replaced the control board (was obviously fried). With new control board in, I now have the same issue, the ‘Heavy Duty’ and ‘normal wash’ lights flashing, and no response from dishwasher. I can’t find ‘teh sheet’ information anywhere.