Larry A 2800 , MI August 26, 2022 Appliance: Frigidaire Freezer FFH17F7HWC Frigidaire Freezer Ffh17f7hwc: Evaporator coils freezing over. How to replace Freezer Defrost Heater. Replaced the defrost heater element Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes