One bolt will tighten up the chain the other loosen it.
Garage door chain came off pulley.
Garage door didn t open in the morning.
For whatever reason the garage door won t open and or close.
Follow me in this video on how.
The reason the chain went off track was because the chain.
Cables may come off the pulley system because of uneven operation on the two sides of the door opener system.
The issue is going to be due to the cable untangling and lodging on the road and drum.
Homeowners may be alerted to this problem by excessive noise and rattling from the cable pulley system when opening according to the frank s garage door repair website.
Tighten the chain and then turn the power back on.
Open up the control box for your opener and you should see the chain control with two bolts one either side of the box.
This could be the issue.
After close examination we found the chain was off track.
Garage door cables can spin off.