How To Fix Craftsman Garage Door Opener Chain

Disengage the garage door from the opener by pulling down on the emergency pull cord to release the door trolley from the opener carriage.

How to fix craftsman garage door opener chain.

Disconnect the wall control wire from your craftsman opener. Make basic checks first. If the chain was installed too tightly on the garage door opener it can make opening the door more difficult for the automatic opener. Insert the jumper wire into the wall control terminals on the garage door opener to see if the garage door moves.

If the rail system is not perfectly level the chain can eventually bind up in the process of working the door. Press the wall control button or remote so that the opener completes its close. If your chain is badly corroded you may need to remove the chain from the carriage assembly and soak it in lubricant for a few hours. Sprocket is at the end of the opener rail closest to the garage door opening.

Check the breaker controlling the door opener and. Around this sprocket as well as the gear and sprocket at the motor. Also the garage door slides along two door rails on either side of the garage. You will use it as a jumper wire in the next step.

Another common cause for a loose chain could be the front sprocket breaking. If the gear becomes too worn it will no longer be able to move the chain. Some problems are associated with the actual installation of the garage door opener. Ensure that the unit is plugged in the door isn t locked and if you are using a remote that the remote has batteries.

Cut a 3 inch strand of insulated wire and peel the ends. Place a level on these and the rail to check to see if they are level. A new front sprocket costs. This excess tension causes the gear that moves the chain to grind down.