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The only thing that could cause the timer to bounce around would be the main control board itself. Try to unplug the dishwasher for 5 minutes or flip the circuit breaker off for 5 minutes to see if the electronics will reset. If that doesn't work, you'll need to order and replace the main control board to resolve the issue. Below is a link to the control board for your model that you'd need to order. The control board is located inside the door in the upper right hand corner and it costs about $235.
CLICK HERE for control board
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