Leslie S Oxford , MI March 14, 2018 Appliance: General Electric Microwave PVM1870DM3BB Microwave had no power Ordered door switches, but didn't solve problem. Sent them back for credit. Ordered thermostat and it solved the problem. Microwave now works fine. The unit is only 7 years old and hope to get another 7 or more out of it. Thanks. Read More... 8 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes Tools: Pliers, Screwdrivers