The garage door may be using a one spring system or a two spring system.
Manual two spring garage door broken.
A garage door should not be opened until the spring is repaired.
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.
The herky jerky motion is especially common with garage doors equipped with extension springs.
A garage door with a broken spring should not be opened or closed using an automatic operator.
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 that has a broken spring has nothing to support its weight.
The size of the door and the type of spring system determines how difficult opening the door will be.
All though some openers can lift the door you risk damage to the operator and the door.