Looked online. Others said to start with the thermostat because its cheap and easy to fix, so I did. The thermostat is located at the rear of the oven on the back. You need to remove a total of 3 panels to get to it. Do not confuse it with the thermal sensor at the rear of the oven on top. My thermostat was clearly deformed, and I had never run a self clean like other with testify to. Simply replace it - easy. Oven worked like new.