Gail, you have to pull the oven out, and take the back off, and in the center of the back is a round part with 2 wires coming to it. It is a thermostat. (Part # 4451442) Of course the oven power is off, when you start taking the oven out. So take the 2 wires off the thermostat, and put the terminal ends together, and put some tape around them, so it does not hit metal, and turn the power on, and see if it works. If so, DO NOT RUN the oven like that. That part stopps the oven from burning down the house. Also replace the sensor inside the oven. It is the long thin rod, that is held in by 2 screws. Remove the screws, and unhook the harness ends in the backside of the oven, and remove the sensor from the front. Let me know how it goes. Tom