After close examination we found the chain was off track.
How to fix garage door chain.
The reason the chain went off track was because the chain.
Step 2 turning off the power.
To do this put some lubricant on a piece of rag this use the rag to wipe the chain.
Make sure that the garage door is closed and that you have another way of getting out of the garage.
Sprocket is at the end of the opener rail closest to the garage door opening.
Another common cause for a loose chain could be the front sprocket breaking.
Pull down the trolley cord to release the trolley from the chain arm and lower the door by hand.
If in doubt replace the chain completely.
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.
If the chain on your garage door is rusty you need to apply lubricant into it to loosen the corrosion.
Make basic checks first.
Check the breaker controlling the door opener and.
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.
How to fix a garage door chain drive sprocket 1.
Loosen the bolts on the chain pulley that s.