Answer Hello Dennis. You will need to look and see if you see the mounting screws for the oven sensor WB21X5301 inside the oven cavity. If so, remove the screws and pull the wire out of the oven. Unplug the wire and plug the new sensor in. If there are no screws inside the oven, you will need to remove the back panel to access and replace the oven sensor. Hope this helps. Read More... Answered by AppliancePartsPros.com | Tuesday, July 26, 2011