If your garage door cable came off one side, meaning it has slipped off the drum above the door or become slack on one side, you need to fix it carefully because the door is now crooked and under uneven tension, and professional repair is strongly recommended. First, stop using the opener and pull the emergency release cord to disconnect opener, as operating with cable off one side can cause door to go further off track and damage panels or rollers. Fully close the door if possible, and clamp it with locking pliers or C-clamps on the tracks just above the rollers on both sides to prevent it from moving or falling, as the door is unstable with one cable off. For torsion spring systems, the spring still holds high tension, so you must use solid steel winding bars to carefully unwind the torsion springs to release tension before attempting to reseat the cable, counting quarter turns so you can restore tension later; this is extremely dangerous and should be done by a professional, as bars can slip and cause severe injury. Once tension released, reseat the loose cable into the grooves of the drum and ensure it is properly attached to the bottom bracket, making sure both sides have equal tension and no kinks. If cable is frayed or kinked, replace both cables with new ones costing 15 to 40 dollars. Rewind springs with correct number of turns and test balance. Professional cable reattachment costs 100 to 250 dollars.
1 votes
Marked as accepted