noisy

Garage Door Co Repair Pros has been advised that some LiftMaster garage door openers (models 1355, 3255, 3270, and 3265-267) manufactured between January and March, 2014 may be generating a higher amount of sound than normal from the powerhead. LiftMaster testing has shown that only a small percentage of these garage door openers vibrate more than LiftMaster finds acceptable. To correct this issue, LiftMaster has designed and tested a Chassis Bracket which an installer can attach to a unit that they determine is experiencing above normal sound levels.