A garage door that has a broken spring has nothing to support its weight.
Manual two spring garage door broken.
Two ladders 6 foot or higher these two ladders serve as stoppers when the roller is fully opened.
Important things needed to open a garage entry with broken spring.
If the roller will not be supported by a stopper it would only shut back since the spring is broken and can no longer support the door s heavy weight.
The herky jerky motion is especially common with garage doors equipped with extension springs.
Some garage door openers are strong enough to lift a door with only one good spring.
If your garage door goes up and down in a jerky motion you might have one broken spring on a two spring system.
A garage door with a broken spring should not be opened or closed using an automatic operator.
Even though some garage doors have more than two springs in the operation system.
A garage door should not be opened until the spring is repaired.