Opener rail flexes excessively or bangs during operation; door movement is noisy.

Safety first: Support the opener while tightening hardware to prevent it from falling. Use a sturdy ladder.

Steps:

• Inspect header bracket: Ensure the bracket above the door is firmly attached to structural framing, not just drywall. Tighten lag screws.
• Check rail joints: On multi-piece rails, verify all joints are fully engaged and bolts installed.
• Secure powerhead: Tighten the mounting straps or angle iron holding the Genie powerhead to the ceiling.
• Test operation: Run the opener and observe. The rail should remain relatively straight without excessive flexing.