Knob is an ice maker replacement part identified by part number 1864650201. It’s intended for service and repair when the original component is worn, damaged, or missing. Use the part number on your machine or old component to confirm you’re ordering the correct item. This replacement component is listed for ice maker service and is ordered by part number to match the correct assembly location. Replacing a compromised component can restore stability and prevent secondary damage to nearby parts. If the issue is visible—broken plastic, stripped threads, or deformation—replacement is often the most direct fix. Replacing the part can bring the system back to predictable operation and help prevent repeat call-backs. A final inspection ensures fasteners and connections remain secure during normal operation. Before closing panels, double-check that fasteners are snug and that nearby lines or wires won’t rub during operation. Before closing panels, double-check that fasteners are snug and that nearby lines or wires won’t rub during operation. Before closing panels, double-check that fasteners are snug and that nearby lines or wires won’t rub during operation. If the symptom is intermittent, pay close attention to connectors, mounting points, and any signs of vibration-related wear. A careful inspection of adjacent parts can help catch secondary issues that may have contributed to the failure. When possible, run the ice maker long enough to observe at least one complete cycle after the repair. Before closing panels, double-check that fasteners are snug and that nearby lines or wires won’t rub during operation. A careful inspection of adjacent parts can help catch secondary issues that may have contributed to the failure. When possible, run the ice maker long enough to observe at least one complete cycle after the repair.