dishwasher is dead

When you try and start the machine, nothing happens. The L.E.D. display is dead. The dishwasher is getting power. I am able to do a L.E.D. check and all the L.E.D.'s light up. Other than that, nothing happens. The machine displayed the number 9 on the screen once when this happened before. Could it be a bad board behind the buttons or a bad latch?