Answer Hello James. If the timer is not advancing, you can test for power to the timer motor and if it is there, you will need to replace the timer in the unit. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html Read More... Answered by AppliancePartsPros.com | Monday, May 20, 2013