How To Fix Craftsman Garage Door Opener Chain

Place a level on these and the rail to check to see if they are level.

How to fix craftsman garage door opener chain.

Insert the jumper wire into the wall control terminals on the garage door opener to see if the garage door moves. Cut a 3 inch strand of insulated wire and peel the ends. Around this sprocket as well as the gear and sprocket at the motor. Another common cause for a loose chain could be the front sprocket breaking.

This excess tension causes the gear that moves the chain to grind down. If the rail system is not perfectly level the chain can eventually bind up in the process of working the door. How to put a chain back on an automatic garage door opener. Also the garage door slides along two door rails on either side of the garage.

Disconnect the wall control wire from your craftsman 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. Sprocket is at the end of the opener rail closest to the garage door opening. 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.

A new front sprocket costs. Disengage the garage door from the opener by pulling down on the emergency pull cord to release the door trolley from the opener carriage. Make basic checks first. If the chain on your garage door is rusty you need to apply lubricant into it to loosen the corrosion.

Press the wall control button or remote so that the opener completes its close. To do this put some lubricant on a piece of rag this use the rag to wipe the chain. You will use it as a jumper wire in the next step. Check the breaker controlling the door opener and.