Roller shutters turn up in shops, warehouses, and garages because they open and close fast. On an electric roller shutter, the spring stores energy and cushions the travel, so when it breaks the curtain gets heavy or drops on its own. Cut the power first, then find the cause before you repair or replace the spring.
If you want to repair a broken roller shutter spring yourself, follow the steps below — but only if you have the right tools and some mechanical experience. With no experience, call RHIDOOR’s repair line at +86 18938501256 or ruihua@rhidoor.com. The spring is a standard hardware part and easy to source, but match the spec so it fits and works.
Signs of Electric Roller Shutter Spring Failure
You will usually notice the problem before the spring snaps. The curtain feels heavy to lift, drops faster than normal, or will not stay partway open. Those are signs the spring has lost tension.
How to Replace a Broken Roller Shutter Spring (Torsion Type)
- Grip the spring shell firmly with both hands from the front, pulling up. Keep a firm hold.
- With the left hand gripping, use a wrench in the right to loosen the screw fixed to the door body. After removal, release the spring slowly with both hands until it has no resistance. Repeat for each.
- Remove the screws on both sides of the manual beam, lower it to the floor, take out the manual shutter spring screw, fit the new spring the same way as the old one, tighten the screws, and reassemble the beam as before.
- Tighten the spring — the key step, basically the reverse of removal. Tighten to the ideal resistance, then secure the screw.
Steel-Strip Spring Replacement
- For a steel-strip spring, grip the torsion spring shell from the front and pull up firmly. With the left hand holding, remove the hook plate with the right (if the manual shutter spring is broken, just take the hook off).
- Pull the spring down and off. The steel strip should be at least 80 cm longer than the door body, ideally. Remove the old screws, fit the new manual shutter spring, tighten to the best resistance, then hook the plate back.
When to Call a Technician
Steel-strip and torsion springs work on the same principle. If you suddenly cannot pull the shutter up, the safest move is to call a technician for on-site roller shutter spring repair and avoid damage or injury. The spring force is large; even a trained technician can get hurt, so do not force it if you are unsure.
Related Articles
- Repair Methods for Different Roller Shutter Types
- Common Fire Rated Roller Shutter Faults and Repairs
- Fire Rated Shutter Control Box: Notes and Wiring
- Maintenance That Extends Your Roller Shutter’s Life
When the patch job stops paying off and you’re ready to replace it, RHIDOOR builds to order at MOQ 1 pc with a 15-day lead time — so the new roller shutter lands before the old one lets you down again.
Ready to upgrade your facility? Let our experts help you find the right RHIDOOR electric roller shutter for your site. Contact us today: phone +86 18938501256, WhatsApp wa.me/8618938501256, email ruihua@rhidoor.com.
