Perry M Chandler , AZ November 10, 2019 Appliance: Samsung Refrigerator RF4287HARS/XAA-0001 Samsung Refrigerator Rf4287hars/Xaa-0001 / : Refrigerator freezer shelf guide rail guides were broken. How to replace Refrigerator Freezer Upper Guide Tray. Ordered replacement parts for the broken parts. Removed the broken parts and replaced them with the new parts. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes