Lawrence W Vermontville , MI January 06, 2025 Appliance: General Electric Refrigerator TFX20JRSMAD Ge Refrigerator Tfx20jrsmad: Freezer coil freeze up. How to replace Refrigerator Defrost Heater. New heaters from this company. Refrigerator is 31 years old. The electronic junk they make today will not even come close to lasting this long. So, I try to keep it going, but parts are becoming more scarce. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes