I have a Frigidaire dishwasher model 154881401. At some point it stopped working and doesn't seem to be responsive. There are no light illuminating on the interface panel and not responding to button presses. I verified power is coming into the board. I tried disconnecting interface ribbon cable and see if pump will start working after closing doors (I read some dishwasher will start running the pump) but nothing happened. I order used control board from ebay but that didn't help. But I also don't how to verify new board is good.
Are there any other ways I can narrow down what is causing the issue? Greatly appreciate any help.