LiftMaster Improper Mounting or Unbalanced Door Load

Garage door opener vibrates excessively and shakes the ceiling when operating.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Loose mounting brackets, opener not braced to framing, unbalanced door causing strain, loose rail bolts

Safety: Use proper ladders and secure tools when working overhead.

Tighten hardware: Check all mounting bolts at the header bracket, rail, and ceiling brackets. Tighten as needed.
Add bracing: If the opener is hung from thin strap only, add angle iron bracing to solid framing to reduce flex.
Check door balance: Have a professional adjust springs if the door is heavy or uneven.
Inspect rail alignment: Ensure the rail is straight and aligned with the center of the door.

Medium 3/5

Mounting Brackets / Rail Assembly

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