Penny D Newport Beach , CA March 26, 2018 Appliance: General Electric Microwave JVM1540DM5WW Ge Microwave Jvm1540dm5ww: My microwave would not turn or heat but everything else seemed okay. How to replace Sw Prim Interlock & Door. I thought it would be the part that turns that needed to be replaced. I asked a question on this site and they told me it was probably one of the switches. So I ordered those and they arrived fairly quickly. The hardest part was figuring out how to take the old switches out of the holder. Other than that it all went well and my microwave is working again. Yeah! Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes