Answer Hello David. Test and make sure you have power coming to the dishwasher. If so, test the door interlock switch WD21X10261 and make sure it is good. If it is bad, it will prevent the dishwasher from running. 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 | Thursday, April 21, 2011