Plant ran for 12 hrs Sat. without losing this starter, so the problem may be solved...a relief because one of the owners wanted me to start replacing starters even though I told him the problem seemed to be in the control ckt. That would be like putting a new engine in your car and finding out the fuel pump was the problem...can't let customers push you in these situations, it will still be YOUR fault when that doesn't solve the problem because "You should have known better than to listen to me"