Make sure that the garage door is closed and that you have another way of getting out of the garage.
How to fix garage door chain.
Step 2 turning off the power.
Garage door didn t open in the morning.
Sprocket is at the end of the opener rail closest to the garage door opening.
Once you are clear that the only problem is a slightly loose chain then you can begin fixing the problem.
After close examination we found the chain was off track.
How to fix a garage door chain drive sprocket 1.
If in doubt replace the chain completely.
Check the breaker controlling the door opener and.
If the chain on your garage door is rusty you need to apply lubricant into it to loosen the corrosion.
The reason the chain went off track was because the chain.
Make basic checks first.
Another common cause for a loose chain could be the front sprocket breaking.
Loosen the bolts on the chain pulley that s.
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.
Ensure that the unit is plugged in the door isn t locked and if you are using a remote that the remote has batteries.
Pull down the trolley cord to release the trolley from the chain arm and lower the door by hand.
Around this sprocket as well as the gear and sprocket at the motor.