I hope this helps.
Garage door not connected to chain.
When the cord is pulled the motor is disengaged from the chain.
Just click here to watch the video.
Most garage doors have an emergency release typically a red pull cord that allows the door to be opened and closed manually.
Otherwise the solution is to add some links to the chain.
If an extension is being used is comes with a longer chain and cable.
If your opener seems to overrun the switch and just keeps trying to pull the garage door up or down after it reaches the end of travel you might assume that it missed the.
The motor will run but will not move the 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.
I provided a video to help adjust the chain.
A chain drive garage door usually has two small switches on the top of the unit these are triggered when small rollers attached to the chain ride into the mechanism.
The chain is located in the garage door s pulley bar.
This distinctive chain features a tension bolt with a nut at its open end.
Remove this nut from the bolt with a socket wrench.
Pull straight down on the emergency release rope once the door is open.
You may be missing that part.
Check the breaker controlling the door opener and reset if it it s tripped.