The gear and sprocket assembly is inside the cover of the garage door opener motor.
Garage door opener belt broke.
Check the chain tension.
Step 1 turn off the power.
Sometimes it s just a matter of changing the batteries in your remote or fixing a fuse in the fuse box.
Next check to see if the opener has become unplugged.
If you re looking for an easy diy then this might be for you.
It s super easy to.
Over tightening the chain will put excess wear and tear on the shaft and gears.
Start by replacing the batteries in your remote.
The most common cause of a chain being loose and appearing broken is a broken gear and sprocket.
Most chain drive openers suggest you tighten the chain so there s about 1 4 in.
You may have a chamberlain liftmaster garage door opener with a broken belt.
Garage door won t open all the way.
If the garage door doesn t budge at all it s probably a power issue.
If you need to replace the belt in your belt drive garage door opener you might be surprised by how simple the task is.