Broken torsion spring
The most common cause. Usually announced by a bang loud enough to hear from indoors.
Fix: Spring replacement. Both springs if the door has two.
It's usually a broken spring. Look at the shaft above the door: a broken torsion spring leaves a visible gap of two or three inches in the coil. The opener isn't built to lift the door on its own, so once that spring goes the door stays shut no matter what the motor does.
Call (510) 694-8090Stop: If your car is behind it, stop trying the opener. Running it against a broken spring strips the drive gear and turns one repair into two.
The most common cause. Usually announced by a bang loud enough to hear from indoors.
Fix: Spring replacement. Both springs if the door has two.
Motor runs, nothing moves. The nylon drive gear has worn through.
Fix: A gear kit, which costs a fraction of a new opener.
Door sits crooked, one side higher than the other.
Fix: Cables replaced as a pair.
Side latch engaged, or the release cord got pulled and the trolley never re-engaged.
Fix: Check the latch, then re-engage the trolley.
Tripped breaker, unplugged unit, or a dead remote and a dead wall button.
Fix: Check the breaker and the plug first.
You get the price before we drive out, and someone picks up whatever time you call.
The most common way a garage door fails, and the one job you shouldn't try yourself.