Answer Hello Drew. If some of the igniters are sparking, and some are not, then you will check the igniters for cracks and continuity. If they are not cracked and the test good. You have a bad spark module WPW10110491. You can test this with a multi-meter MA-DM1. 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 | Friday, April 29, 2011