Cables may come off the pulley system because of uneven operation on the two sides of the door opener system.
Garage door chain came off pulley.
Is your cable off on your garage door.
Garage door didn t open in the morning.
This could be the issue.
Open up the control box for your opener and you should see the chain control with two bolts one either side of the box.
The reason the chain went off track was because the chain.
Tighten the chain and then turn the power back on.
Follow me in this video on how.
Once you have done this you can then tighten your garage door opener chain.
The issue is going to be due to the cable untangling and lodging on the road and drum.
For whatever reason the garage door won t open and or close.
One bolt will tighten up the chain the other loosen it.
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.