Opener vibrates excessively and the rail shakes when operating, causing noise in the house.

Safety first: Disconnect power before tightening or moving brackets. Use appropriate fixings for ceiling material.

• Inspect mounting hardware: Check all bolts and screws securing the Merlin opener to the ceiling and header. Tighten any loose fasteners.
• Add bracing: If the opener is mounted on long, flexible straps, add cross‑bracing or replace with rigid angle iron to reduce sway.
• Level the rail: Adjust hanging brackets so the rail is straight and not twisted.
• Secure to solid framing: Ensure lag screws are anchored into joists or beams, not just plasterboard.