D. for Model Number ZISW420DMA You keep mentioning to " testing the defrost heater for continuity" before doing the De Icing repair kit. How does one test the defrost heater for continuity?
Answer Hello D. You use a multi meter. It should read closed for continuity. 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 | Tuesday, October 13, 2015