Craftsman Garage Door Chain Fell Off

If you are outside the door when this occurs you will need some assistance to move the door manually.

Craftsman garage door chain fell off.

Open the door manually. I have a 4 year old craftsman 1 2 hp garage door opener. Press down on the chain with your finger. The chain moves about 6 inches trying to close again and stops.

Located at the top of the motor unit the gear and sprocket assembly drives the chain that opens and closes the garage door. Keep it propped open while you fix the chain. Grasp the chain 1 foot from where it connects to the end of the threaded chain anchor. If the gear and sprocket assembly breaks the motor runs but the door won t move.

The chain fell off the drive so i put it back on and re tightened. If you find that your garage door opener chain falls off the track on which it has been placed you will need to put it back up and then tighten the chain to stop this happening in the future. Problem is that the door only seems to want to close and it s already closed. Pull the chain toward the garage door and hold it in position.

This will release the door from the garage door opener. If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch. The chain is attached to a threaded rod that is attached to the trolley. Reach overhead and pull the rope that releases the door from the opener.

Place a stepladder near the motor and unplug the power cord for the motor from the electrical. Every time you push the. Pull down the trolley cord to release the trolley from the chain arm and lower the door by hand. Once you locate where the wheels on the door are jumping.

In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor. Disconnect the garage door from the opener.