Richard C Temecula , CA August 30, 2022 Appliance: Kenmore Refrigerator 79572182315 Kenmore Refrigerator 79572182315: Error message er rf on our Kenmore elite model 79572182315. The refrigerator fan froze up. Ice build up. How to replace Fan Motor Assembly (Dc). Replace the refrigerator DC Fan Motor Assembly. Ice buildup on the refrigerator coils took longer than expected but we accomplished it. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours