Dishwasher won't start

I have blinking lights on the front of my Whirlpool dishwasher and it won’t start. I paid Sears to come diagnose the problem but the cost to repair it was more than what I paid for the dishwasher. Since I knew that we needed a control panel (according to Sears) that is what I ordered from you. My husband installed the new board last night, very easy, just plug everything in but the dishwasher still will not work. Don’t know if Sears made a mistake or if the board is maybe bad. Please help.

Here is the tech sheet
https://www.servicematters.com/docs/wiring/Tech%20Sheet%20-%208535451.pdf

Try to run the diagnostics.
Often blinking lights is a keypad problem, see the tech sheet for the method to check the keypad with a meter.

You could try the following but it sounds more like a shorted key switch.
RIBBON CABLE CLEANING
Unplug the unit
Open it up
Remove the ribbon cable from the keypad to the control board at the control board.
Clean the edge connector.
If it is the type where there is not a connector just the insulation is removed, it can be cleaned with a pencil eraser. Do not use an ink eraser as it is too abrasive.
Check the tracks in the ribbon cable for hairline cracks. A magnifying glass helps here.
Would not hurt to clean the connector on the board. Use electronics contact cleaner or isopropyl alcohol and a tooth brush. Be gentle and do not reconnect till all the solvent evaporates.
Reconnect everything and give it a try.

Thanks very much for your help. We’ll give this a try.