Good to know
What the lift cables do
The cables connect the door to the spring system and carry its weight as it travels. When one frays or snaps, the door can drop or sit crooked.
Cables usually fail from rust, age, or a door that is out of balance because a spring is wearing out. Because they work hand in hand with the springs, a broken cable is often a sign the whole counterbalance system needs a look.
A loose or snapped cable is under tension and dangerous to handle, so do not pull on it or force the door. We replace cables in pairs and recheck the drums and spring balance so the new cable does not wear out early.