Jeffrey L Stillwater , PA October 26, 2019 Appliance: Magic Chef Microwave MCO165UB Magic Chef Microwave Mco165ub: Microwave did not have power. How to replace Thermostat (Temperature Control). Replaced high temp cutoff thermostat. I have had to replace this several times over the four years of having this Magic Chef microwave. 4 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes