Have Whirlpool dishwasher Gold Series,

Question

Have Whirlpool dishwasher Gold Series, Model GU9805CGB1 which stops part way through wash cycle with the led indicator blinks on the normal cycle.....if we ope nthe door and shut ...it continues until part way through rinse cycle...stops again....led indicator blinks again.....we open the door & shut and it continues....but then continues to run through the normal wash cycle continuously.....until we open the door again.....what's wrong???