If the chain was installed too tightly on the garage door opener it can make opening the door more difficult for the automatic opener.
How to fix craftsman garage door opener chain.
Ensure that the unit is plugged in the door isn t locked and if you are using a remote that the remote has batteries.
You will use it as a jumper wire in the next step.
Place a level on these and the rail to check to see if they are level.
Sprocket is at the end of the opener rail closest to the garage door opening.
To do this put some lubricant on a piece of rag this use the rag to wipe the chain.
Press the wall control button or remote so that the opener completes its close.
How to put a chain back on an automatic garage door opener.
If the gear becomes too worn it will no longer be able to move the chain.
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.
Insert the jumper wire into the wall control terminals on the garage door opener to see if the garage door moves.
Also the garage door slides along two door rails on either side of the garage.
If the rail system is not perfectly level the chain can eventually bind up in the process of working the door.
Some problems are associated with the actual installation of the garage door opener.
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.
If the chain on your garage door is rusty you need to apply lubricant into it to loosen the corrosion.
This excess tension causes the gear that moves the chain to grind down.
Another common cause for a loose chain could be the front sprocket breaking.
A new front sprocket costs.
Check the breaker controlling the door opener and.