Went to this m/c today but didn’t have a lot of time to look at it (customer decided to go shopping,why?),getting power to the board up top but no voltage out ,tried door interlock,checked for blown tracks on all 3 boards all ok no earth leakage to motor. Just get a blank display no fault codes nowt!
i would be looking at replacing the main power module as any fault with components on this will kill the display board, the chances of the actual display being faulty are slim.