Reach overhead and pull the rope that releases the door from the opener.
Craftsman garage door chain fell off.
Once you locate where the wheels on the door are jumping.
Place a stepladder near the motor and unplug the power cord for the motor from the electrical.
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.
The chain moves about 6 inches trying to close again and stops.
Problem is that the door only seems to want to close and it s already closed.
Open the door manually.
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.
I have a 4 year old craftsman 1 2 hp garage door opener.
Pull the chain toward the garage door and hold it in position.
Every time you push the.
Thread the nut s facing the door clockwise until it meets the bracket then release the chain.
Pull down the trolley cord to release the trolley from the chain arm and lower the door by hand.
Grasp the chain 1 foot from where it connects to the end of the threaded chain anchor.
Disconnect the garage door from the opener.
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.
This will release the door from the garage door opener.
To reinstall the chain on the sprocket first with the door closed pull the rope hanging down from the trolley on the t bar.
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 fell off the drive so i put it back on and re tightened.
If you are outside the door when this occurs you will need some assistance to move the door manually.
The chain is attached to a threaded rod that is attached to the trolley.