Roller Shutter Not Opening or Closing? What to Do First

Safe checks you can do yourself

Before you touch anything, stop pressing the button. Repeatedly forcing a jammed shutter is the quickest way to turn a 100 pound repair into a new motor or a bent curtain. Take thirty seconds to rule out the obvious causes first.

Most of these checks take five minutes and need no tools. If the shutter starts moving again, watch it through two or three full cycles before you rely on it, because an intermittent fault usually comes back.

• Check the power. Look for a tripped breaker or RCD on your fuse board, and check the isolator switch next to the shutter has not been knocked off.
• Test the remote or key switch. Fob batteries fail more often than motors do. If you have both a fob and a wall switch, try each in turn to narrow it down.
• Look in the guide rails. Leaves, packaging, grit and even frost can jam the curtain. Only clear debris you can reach easily with the shutter isolated.
• Listen when you press the button. A humming motor that does not move suggests a mechanical jam or worn motor. Total silence points to power, a fuse, or the control board.
• Check for visible damage. A dented lath, a curtain sitting skewed in the guides, or a slat riding out of its channel means stop and call an engineer.

Common faults and what they usually mean

Electric shutters fail in fairly predictable ways. Motor thermal cut-out is one of the most common and least understood: if the shutter has been run up and down several times in quick succession, the motor overheats and shuts itself off. Leave it 20 to 30 minutes and it will often work again. If it happens regularly, the motor may be undersized or on its way out.

Mechanical faults tend to announce themselves. A shutter that grinds, judders or drifts to one side usually has worn guides, a slipped slat or failing springs. On older manual shutters around Birmingham's shopping parades, snapped tension springs are the classic failure, and the shutter suddenly feels far heavier than normal. Never try to adjust or re-tension springs yourself, as they store enough energy to cause serious injury.

Stuck open or stuck shut: managing the security risk

If your shutter is stuck open at closing time, treat it as urgent. Most reputable local firms, ours included, run a call-out service for exactly this situation, and an engineer can usually either repair on the spot or secure the shutter manually so the premises are safe overnight.

If it is stuck shut in the morning, check whether your motor has a manual override, usually a winding handle or a pull cord release. Many commercial shutters have one fitted precisely for power cuts and motor failures. If you cannot find it or it will not turn, do not lever the curtain up by hand, as you can pull the bottom lath out of the guides and make the repair considerably bigger.

What a repair typically involves and costs

An engineer will normally diagnose the fault on the first visit. Straightforward jobs such as realigning the curtain, clearing the guides, replacing a fob or swapping a limit switch are often done there and then. In the West Midlands, a call-out with a minor repair commonly lands somewhere between 90 and 200 pounds, though it depends on access, the shutter size and whether it is out of hours.

Bigger items cost more. A replacement single-phase tube motor supplied and fitted is typically in the 250 to 600 pound range depending on the size and weight of the curtain, while new guides or a replacement curtain section can go beyond that. If the shutter is more than 15 to 20 years old and faults are becoming frequent, ask for an honest comparison between repair and replacement, because there is a point where patching it up stops making financial sense.

One thing worth doing whatever you decide: get the shutter serviced once a year. Lubricated guides, checked fixings and tested safety brakes prevent most of the failures described above, and for a shopfront shutter in daily use it is far cheaper than an emergency call-out at 6pm on a Saturday.