Sybil L Westminster , CA January 01, 2021 Appliance: General Electric Refrigerator GNS23GMHBFES Ge Refrigerator Gns23gmhbfes: Broken door part. How to replace Mullion Articulation Assembly (Fresh Food Door Flipper). Replaced part off door. Unscrewed the old one and screwed on the new one. It was very easy. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes