James F Dallas , GA March 13, 2015 Appliance: Maytag Refrigerator MSD2651KES Maytag Refrigerator Msd2651kes: Freezing up evarorator. How to replace Defrost Heater (Evaporator). Replace defrost heater and switch. Tested outside of limits of resistance 18 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes