Some openers are louder than others. Chains rattle, springs creak and
doors chatter as they move. As long as the door operates properly,
barring alarming noises such as shrieks that suddenly arise or smoke
billowing from the unit, there’s probably nothing to cause concern.
New noises or movements can result from loose nuts and bolts or
failure in the track system. Examine every part of the door, rails,
drive and springs. Tighten or adjust components as needed. Lubricate the
travel mechanism with a little oil or as recommended by the
manufacturer.
You can actually pop the cover off the opener unit and observe how it
works when activated. Just don’t touch anything to prevent electrical
shock or injury.
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