Walter G Ingomar , PA November 27, 2016 Appliance: Model J VM 130K 003 GE No heat loud huming sound Took apar. checked all parts and found magnatron shorted to ground . Ordered new part and replaced Read More... 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 2+ hours Tools: Nut Drivers, Pliers, Screwdrivers