Keeping the air circulation in your refrigerator just right is important for storing food properly. The refrigerator air damper helps with this. It controls the airflow between the fresh food area and the freezer in your KitchenAid refrigerator. If your appliance has cooling problems or too much frost, a broken air damper could be the reason. https://kitchenaid-repairs.com/pro-tips-for-kitchenaid-refrigerator-air-damper-replacement/