constant blinking normal light whirlpool

Lights have blinked intermittantly on their own for several months. Sometimes one segment in the countdown timer would be on. But I still could run dishwasher during periods when all lights were off and it cycled normally. As I said, an intermittant problem. Now, normal light blinks continuously. All other buttons dead. Reset at fuse box briefly allows cancel/drain to work. But then drain ends and blinking "normal" returns and stays on, locking out any functionality. Have tried the reset combinations sani/dry buttons and others. nada. Any solution beyond new control panel?