Garage Door Chain Drive Fix
Located along the rail the chain an.
Garage door chain drive fix. A new front sprocket costs about 150 200 include the labor to install it. If there are some you can use a wood block and your hammer to fix the dents. If you are not confident in your ability to diagnose the problem call a local garage door service company. If the motor hums but the chain doesn t move that indicates a problem with the motor.
Sprocket is at the end of the opener rail closest to the garage door opening. Examine the metal tracks on the door for dents or bumps. Make sure the tracks are aligned properly. Tighten the bolts on.
Press the remote or the wall mounted start switch listen to the motor and watch the movement of the chain. This video from sears partsdirect shows how to replace the chain and cable assembly on a chain drive garage door opener.