Cycle starts normally and at some random time the Start/Resume light begins to blink and cycle stops. If I open and close the door, then press Start/Resume, the cycle will begin again and some times it will complete normally, other times it will stop again. I've reconnected wire nuts for power connection and manually operated door switch, which seems to be functioning properly. Not sure how to isolate the problem.

Thanks Gene, I will try to take a look at that today, but I don't understand how the light could be blinking if the switch isn't making up. Where would the power come from to blink the light? It appears to me that the switch interrupts power as soon as it comes into the dishwasher.