Thermostat or Switch?

I have double oven that does not turn off with the thermostat. Turn the switch to the oven on position and the upper oven turns on, but will not cycle off to maintain heat. I am down to the thermostat or switch. I don’t want to replace the wrong part.

Check the oven thermostat for continuity in "off" position. If the circuit is closed then the thermostat is bad. The wiring diagram will help you to find the correct thermostat terminals for diagnosis.

Here are the break down diagrams and http://www.appliancepartspros.com/partsearch/model.aspx?diagram_id=191042&&model_id=233095

Gene.