Garage Door Opener Sprocket Broke Off

Chain drive garage door openers have a sprocket that is attached at the top of the motor.

Garage door opener sprocket broke off.

A new front sprocket costs about 150 200 include the labor to install it. If yours is a belt drive you need a kit like this https amzn to 2zqns. If the piece of metal that broke off is the piece where the j bar that connects your garage door opener to the door then you can repair this by installing a new operator bracket. First we will address fixing the broken piece of metal.

Over time the sprocket s teeth can wear and the chain may jump or skip when the opener raises the door. The chain wraps around this sprocket as well as the gear and sprocket at the motor. Chain driven garage door openers should have some slack in the chain for optimal performance. If you are not confident in your ability to diagnose the problem call a local garage door service company.

Over time though this slack can increase or the gear and sprocket assembly can wear and the chain may pop off the sprockets. Manufacturer and model number of your garage door. You can put the chain back on your automatic garage door opener using a simple adjustment mechanism. Operator brackets come in different styles some are.