If it continues to operate the door can sustain serious damage.
Garage door spring popped off.
Opener systems can develop a number of problems including electronic problems with remote control units chain slippage faulty roller action and cables that come off the pulley system.
How to fix a garage door when it becomes detached.
A garage door should not be opened until the spring is repaired.
If your garage door ever comes off its track stop operating it immediately.
Articles if you are replacing a broken torsion spring on your garage door then you have an option to order a new spring with winding and stationary cones already attached.
However when you need to get your car out of the garage it may be necessary if you cannot wait for the repairman.
Just like the torsion springs they make it easier to lift a large heavy garage door.
Disconnect the garage door opener so the door remains closed.
Your cables have snapped or popped off.
Use extreme care when opening a garage door in this manner.
The size of the door and the type of spring system determines how difficult opening the door will be.
Use locking pliers or a c clamp to secure the door to the track to keep it from opening when you release the tension on the springs.
Some people are unaware of these cables until something goes wrong.
Garage door lift cables hold the spring tension and counterbalance the weight of the door.
However in most cases the existing cones are in perfectly good condition and can be used again with a new spring.
Unplug the garage door opener and clamp the door to the track.