Carol for Model Number ge spacesaver 1800 XL/ JVM1870sk03 The board is completely black and none workable. Do I need a fuse, control panel or a new microwave?
Answer Hello Carol. Test the fuse. If it is bad replace it but make sure the door switches are good. Usually they will cause the fuse to blow if bad. 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 | Friday, September 13, 2013