Sears Garage Door Opener Chain Not Moving

The chain got loose and popped off the gear.

Sears garage door opener chain not moving.

A broken chain or belt can also prevent the trolley from moving. If the trolley doesn t move when the motor runs you may need to replace the gear and sprocket assembly or the drive and worm gears. Whether you re updating an old garage or repairing a garage door opener that s been on the fritz for too long a new opener can help you get things moving. Press the remote or the wall mounted start switch listen to the motor and watch the movement of the chain.

3 if the chain still doesn t move check the force settings on the motor head. Activate the garage door opener with the emergency release still pulled to see if the trolley moves. This excess tension causes the gear that moves the chain to grind down. I am not a professional.

If your garage door opener s motor runs but the chain doesn t move the gear and sprocket assembly might be broken or worn. 2 if it is getting power then disconnect the door and then see if the chain will move. This repair guide and video show how to replace a chain drive garage door opener gear and sprocket assembly. Some problems are associated with the actual installation of the garage door opener.

Turn them to clockwise to max and try again. Your user manual should have details on how to perform this but usually there is a screw you adjust on the trolley that controls the tension. If the chain has come off you will need to loosen the chain tension place the chain back over the sprocket and tighten it to the correct tension. If the gear becomes too worn it will no longer be able to move the chain.

Those are the two blue screws. Also the garage door slides along two door rails on either side of the garage. If the chain was installed too tightly on the garage door opener it can make opening the door more difficult for the automatic opener. Place a level on these and the rail to check to see if they are level.

Maybe you have a broken torsion spring or the door is too heavy. Documenting how i repaired the garage door.