After inspecting the unit I noticed the inner oven box had four sections. The center section of the ceiling of the top oven had separated from the right side wall and had fallen to contact the top heating element. The gap created affected the Oven Temp. Sensor which caused the ven to shut off and the code to display. I repaired the ceiling and cleared the code. Problem solved. The parts I ordered the Oven Temperature Sensor and Oven Thermal Fuse which I kept as these parys are common failure parts as per many threads I've read. There replacement would require about ten min. of replacement time.