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Roller shutter not working? Common faults and safe checks

The common reasons a roller shutter stops working, what you can safely check, and when to call an engineer.

If a shutter will not move, first check the power, the switch or remote battery, and that nothing is blocking the guides. If it hums without moving, stops part way, runs crooked or has dropped suddenly, stop using it, keep people clear and call an engineer.

By the Roller Shutters UK survey and installation team · Reviewed October 2026

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Safe checks you can make

  • Is there power to the socket or spur? Has a fuse or breaker tripped?
  • Does the remote need a new battery, or does the wall switch work when the remote does not?
  • Is anything in the guides or under the bottom rail, such as ice, debris or a fallen object?
  • Has the shutter been locked manually, or is a key switch turned off?

Common faults and what they usually mean

  • Hums but does not move: often a motor, brake or capacitor fault, or a curtain jammed in the guides.
  • Stops part way or reverses: obstacle detection triggered, limits drifted, or a safety edge or photocell fault.
  • Runs crooked or noisy: laths out of the guides, worn end locks or damaged guides.
  • Manual shutter suddenly heavy: weakened or broken springs.

Stop and call us if

  • The shutter hums but does not move, stops part way, or runs on one side.
  • Laths have come out of the guides or the curtain is bowed.
  • A manual shutter has suddenly become very heavy or very light.
  • The shutter dropped on its own.

Help us help you

Send photos of the shutter, the box and any labels, and tell us roughly when it was fitted and what it is doing. It helps us bring the right parts, so we can aim to fix it on the first visit.

Keeping it working

  • Run the shutter fully up and down regularly, and keep the guides free of dirt, leaves and grit.
  • Do not grease the guides unless the manufacturer says so, because grease holds dirt; a silicone spray is the usual recommendation.
  • Never hang anything from the bottom rail, and keep remotes away from children.
  • Have shutters used every day serviced once a year, and busy commercial doors every six months.

This guide is general information, not legal advice. Rules can change; check with the relevant authority for your property.

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