Gate Not Detecting Obstacles? Restoring the Protection Your Family Relies On in Coventry

Obstacle detection is what allows a heavy gate to share a driveway with people. It is a combination of devices — photocells watching the path, safety edges on the leading surfaces, and the motor's force limits sensing unexpected resistance — and when any part of it fails, the gate will keep moving where it should have stopped. A gate whose obstacle detection has failed is not just faulty; it is unsafe to use until it is repaired.

Why This Repair Cannot Wait

A family car bumper is the cheap casualty in a gate strike. A leg, an arm or a pet is the serious one. Gates are heavy moving machinery, and the protection that stops them hurting anything is not optional equipment — it is fundamental. That is why our first advice is always to limit use of the gate until detection is restored, keep everyone clear while it moves, and never, under any circumstances, disable or bypass safety edges, photocells or force limits to make the gate run normally in the meantime. Defeating the protection does not fix the fault; it removes the only thing standing between the machinery and harm.

The Three Layers of Detection

Photocells detect anything crossing the invisible beam across the gateway before and during movement. Safety edges — rubber profiles with an internal sensor along the gate's leading edge — detect contact at the moment it happens. Force limits in the control board detect resistance the other two miss: if the motor suddenly has to work harder than expected, the board stops and reverses. A gate with only one layer working is a gate with most of its protection missing, and we test all three.

How Detection Fails

Photocells fail through misalignment, dirt on the lenses, water ingress, wiring faults and component age. Safety edges fail when the rubber profile is damaged, the internal sensor fails, or the edge's wiring is broken — sometimes invisibly, inside the profile. Force limits fail less often themselves and more often get mis-set: turned up to push past a stiff gate, or reset wrongly after battery or board work. Any of these leaves the gate moving when it should not.

How We Test Detection Properly

We test each layer deliberately rather than trusting a gate that seems to reverse sometimes. The photocell beam is broken during a closing cycle to confirm the gate responds. The safety edges are tested per the manufacturer's method with a controlled contact during movement. Force limits are checked against the manufacturer's specification using measured settings rather than feel. Then we test the whole system together, because layers can individually pass while the combination is wrong — a board set to ignore a triggered edge, for example, or photocells wired to a dead input.

What We Repair

Alignment, cleaning and wiring faults are straightforward repairs. Damaged safety edges are replaced with the correct profile for your gate — edges are not interchangeable, and the wrong type can be both ineffective and non-compliant with how the system was designed. Failed photocell units are replaced as matched pairs where needed. Mis-set force limits are restored to specification, not simply increased. On older systems lacking modern safety devices, we will explain honestly what can be added and what it involves. Parts are quoted separately and the full cost is approved by you before work starts.

The Honest Limits

Detection systems detect — they reduce risk, they do not eliminate it, and no gate can be made incapable of harming a person who behaves carelessly around it. We will tell you what your system can and cannot achieve after repair, including whether older equipment can realistically be brought up to a good standard or whether an upgrade makes more sense.

Aftercare

Detection equipment repays simple attention: keep photocell lenses clean, report knocks to units or bent edges promptly, and have the system serviced periodically so force limits and safety devices are tested against specification rather than memory. If the gate ever feels different — faster, harder, less willing to reverse — book a check rather than waiting.

When to Call Us

Call if the gate has ever failed to reverse for an object or person, if a safety edge has been knocked or damaged, if the gate feels more forceful than it used to, or after any board, battery or motor work by anyone else. Tell us the make and model, what happened, and whether the gate currently reverses at all.

Booking Your Visit

You pay a booking fee when you book, and labour is charged hourly at a rate that depends on how soon you need the visit. The full cost of the repair is quoted and approved before we start, with parts quoted separately. Same-day visits may be available — safety faults on gates are prioritised.