Do I need both switches, AP4357980 and AP4358023?
Answer Hello Daniel. You will need to remove the switches W10211973 W10211974 from the unit and test them to see which one is bad. NC to COM should read closed and NO to COM should read open. When you press the button, they should reverse on the readings. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. Hope this helps. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html