Thomas R Sac , CA August 24, 2014 Appliance: Magic Chef Refrigerator MCBR1010W Magic Chef Refrigerator Mcbr1010w: After 10 years of service in a doctors office stopped working faithfully. How to replace Defrost Timer. Went on Line and Found Common Problem for this Modl Reefer.. The Defrost Timer goes Bad.. i Replaced This Timer and Now Works Fine.. Tim Haaby CMO. 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes