Inspect the lift cables and pulleys that attach to the bottom roller brackets on the door. These provide the connection between the springs and the door to help lift and lower the door safely. Garage doors have one of two different types of springs: Extension springs Extension springs are long, skinny springs that run alongside the horizontal (overhead) portion of each door track. Torsion springs are mounted to a metal rod above the door opening. Both types use cables to lift the door.
Most experts advise that cables and springs should not be touched by homeowners since these high-tension parts can be dangerous. If you spot any broken strands or other signs of wear or damage on the cables, call in a service person for assistance.
Call Scandia Doors (612) 300-7736