How To Fix Craftsman Garage Door Opener Chain

Also the garage door slides along two door rails on either side of the garage.

How to fix craftsman garage door opener chain.

Another common cause for a loose chain could be the front sprocket breaking. Ensure that the unit is plugged in the door isn t locked and if you are using a remote that the remote has batteries. Around this sprocket as well as the gear and sprocket at the motor. How to put a chain back on an automatic garage door opener.

You will use it as a jumper wire in the next step. Insert the jumper wire into the wall control terminals on the garage door opener to see if the garage door moves. Press the wall control button or remote so that the opener completes its close. Sprocket is at the end of the opener rail closest to the garage door opening.

Place a level on these and the rail to check to see if they are level. Check the breaker controlling the door opener and. Disconnect the wall control wire from your craftsman opener. Disengage the garage door from the opener by pulling down on the emergency pull cord to release the door trolley from the opener carriage.

If the gear becomes too worn it will no longer be able to move the chain. If the rail system is not perfectly level the chain can eventually bind up in the process of working the door. Make basic checks first. If the chain on your garage door is rusty you need to apply lubricant into it to loosen the corrosion.

Some problems are associated with the actual installation of the garage door opener. This excess tension causes the gear that moves the chain to grind down. If the chain was installed too tightly on the garage door opener it can make opening the door more difficult for the automatic opener. A new front sprocket costs.