Crystal D Bellevue , NE May 28, 2018 Appliance: Samsung Refrigerator RS2578BB/XAA Samsung Refrigerator Rs2578bb/Xaa / : The refrigerator door no longer opened or closed smoothly (the door cam riser broke). How to replace Refrigerator Door Hinge Cam Riser. I followed the instructions exactly as shown on your repair video: 1. Cleaned out the refrigerator and put perishable foods into an ice cool. 2. Turned off the water to the refrigerator and unplugged it. 3. Unscrewed the plate on top of refrigerator door and disconnected the wires. 4. Removed the door. 5. Replaced the Door Cam Riser and Hinge Cam Riser. 6. Put the door back on. 7. Tested door several times. 8. Reconnected the wires / plate on top of door. 9. Turned water back on and plugged in refrigerator. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes