Jeffrey F Lonoke , AR September 10, 2015 Appliance: Samsung Built-In Microwave Oven SMH9207ST/XAA-0001 Samsung Microwave Smh9207st/Xaa-0001 / : Microwave ouit working. How to replace Microwave Temperature Control Thermostat. Checked thermo fuses had one that was bad. 4 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes