Ronald S Lakeview , MI October 06, 2023 Appliance: KitchenAid Refrigerator KBFA20ERSS00 Kitchenaid Refrigerator Kbfa20erss00: Lower freezer section cold upper refrigerator warm. Damper control door not opening. How to replace Damper Control. Ordered a new damper control. Paid extra to get it the next day. Part was on-time, exact fit, easy fix, especially after watching a video on the website. Fridge works great! Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes