Safety: Garage doors are heavy and spring/cable systems can be under significant tension. Do not loosen or disassemble high-tension hardware unless you are qualified to do so.
What Can Put a Door Off Track
A damaged roller, impact, cable problem, track obstruction, loose hardware, or uneven lifting can allow part of the door to move out of alignment.
Do Not Force It
If the door is visibly crooked, binding, or hanging unevenly, repeated opener cycles can make the situation worse.
Related Components
Off-track problems often require checking rollers, tracks, hinges, cables, brackets, and overall door alignment rather than treating only the visible symptom.