Answer Hello Richard. First check and make sure the venting system is not clogged and the unit is blowing the air good. You can test the sensor assembly 6501EL3001A. It should read closed for continuity. Also, test the thermister 6323EL2001B. It should read 10 ohms across the terminals. 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 Read More... Answered by AppliancePartsPros.com | Wednesday, July 6, 2011