Jim V Lockport , NY August 13, 2021 Appliance: Kenmore Refrigerator 79577309601 Kenmore Refrigerator 79577309601: Condenser fan not operating. How to replace Refrigerator Main Control Board Assembly. Replaced the main control board and the condenser fan started working again. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes