Dwight M Essie , KY March 28, 2021 Appliance: General Electric Microwave JVM1540DM5WW Ge Microwave Jvm1540dm5ww: Microwave wasn’t heating. How to replace Sw Prim Interlock & Door. My door switches weren’t working properly. I checked them with an ohm meter. Ordered the defective switches. Microwave is working good now. 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes