Safety first: Unplug the opener before removing the cover.

1. Remove housing cover: Carefully take off the Linear opener cover and inspect inside while gently shaking the unit (with power off).
2. Tighten hardware: Secure any loose screws on the control board, motor mounts, and sprocket assembly.
3. Check lens and covers: Ensure the light lens and any decorative covers are snapped or screwed in firmly.
4. Test operation: Reinstall the cover and run the opener to confirm the rattling is gone.

Opener operates normally but makes a rattling noise inside the housing.

Possible Causes