You will need to put a new oven sensor in this. This is what senses the heat in the oven.
Here is a place here that i allways do buisness with you can order it here and watch a little video on how to go about changing this.Click on where it says watch video.
Hang on a sec. You can watch the video from the site that i sent you but you can order the part from sears it $10.00 or so cheaper.
Yep that it.