Garage Door Gear Broke

Over time the sprocket s teeth can wear and the chain may jump or skip when the opener raises the door.
Garage door gear broke. Replace the main gear drive if the garage door opener makes a grinding noise but the door doesn t move your main drive gear is probably toast. The most common cause of a chain being loose and appearing broken is a broken gear and sprocket. Chain drive garage door openers have a sprocket that is attached at the top of the motor. The gear and sprocket assembly is inside the cover of the garage door opener motor.
This can be easily replaced by a garage door service technician. The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor.