Signs to watch for
Different faults can look alike. These clues can help you explain the problem, but a technician needs to inspect the door to identify the cause.
- A gap appears in the coil above the door.
- The door feels heavy or slips down after manual movement.
- The opener struggles even though the tracks appear clear.
What happens next
The technician should check door weight and dimensions, identify the spring specifications, inspect the shaft and bearings, fit the replacement and test balance and travel. Ask what parts and labor are included in the quote.
Safety note: Never attempt to wind or unwind a torsion spring without training. The tension is dangerous even when the door is not moving.
Questions people ask
How is a torsion spring different from an extension spring?
A torsion spring mounts above the door on a shaft. Extension springs usually run along the horizontal tracks. Both are under tension and should be assessed by a trained technician.
Why does spring size matter?
The spring has to counterbalance the specific door. A mismatched spring can make the door travel poorly and put extra load on the opener.