I tested each switch and component in sequence starting with the door and interlock switches and then went through each high limit switch looking for a short or out of sequence switch. When they all checked out I checked the High Voltage Capacitor and diode assembly which were the next devices likely to cause a blown fuse. Using a Digital VOM set to 20 Meg Ohms, the capacitor read out as shorted. I replaced the capacitor and the diode as a set and it corrected the problem.