An electric gate that stops working is one of those household failures that feels more urgent than it actually is, because the gate sits between your property and the public road and a gate stuck open creates an immediate feeling of vulnerability. The good news is that most gate faults are caused by a small number of well-understood problems, many of which can be identified or even resolved without an engineer visit.
Step One is to Secure the Gate Manually
Before diagnosing anything, get the gate into a secure position. Every automated gate system has a manual release mechanism that disengages the motor and allows the gate to be moved by hand. On swing gates, this is usually a key-operated release on the motor housing that frees the gate from the drive arm, allowing you to push the gate closed and latch it. On sliding gates, the release disengages the motor from the drive rack, allowing the gate to slide freely on the track.
The manual release procedure is specific to your motor brand and model. It should have been demonstrated at handover and documented in the paperwork your installer provided. If you cannot locate the instructions, search for the motor brand and model number followed by "manual release" and you will find the manufacturer documentation. FAAC, BFT, CAME, Nice, and Beninca all publish release procedures for every motor in their residential range.
Once the gate is closed and latched manually, the security concern is resolved and you can take your time diagnosing the fault without pressure.
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Check the Power Supply
The most common reason for a gate that does not respond to any input is a power supply failure. Check the circuit breaker or fuse that supplies the gate motor at your property distribution board. If it has tripped, reset it. If it trips again immediately, there is a fault in the wiring or the motor that requires an engineer. Do not keep resetting a breaker that repeatedly trips.
If the breaker is fine, check whether there is a local isolator switch near the gate motor. Some installations have a weatherproof switch on the wall or pillar near the motor position that may have been accidentally turned off by a visitor, a gardener, or a child. It sounds obvious, but isolation switches account for a surprising number of "gate not working" calls to engineers across Kent.
Power cuts are another common cause. If the mains supply to the property has been interrupted and the battery backup has discharged, the gate will not operate until power is restored. Check whether other electrical items in the house are working. If the power is off, wait for it to return. The gate should resume normal operation automatically once the mains supply is restored and the battery has recharged, which typically takes 15 to 30 minutes.
Check the Remote Control
If the gate does not respond to the remote but the control board lights are on (visible through the housing window on most motors), the fault may be with the remote rather than the gate. Replace the remote battery first. If you have a second remote, test with that. If neither works, try operating the gate from the button on the control board itself, if accessible. A gate that responds to the board button but not the remote has a remote or receiver fault, not a motor fault.
Remotes can lose their programming, particularly after a power interruption or a battery replacement. The re-programming procedure is in your motor handbook and typically involves pressing a button sequence on the control board while pressing the remote button. If you are not comfortable doing this, an engineer can re-programme the remotes in a few minutes during a callout.
Check for Obstructions in the Gate Path
A gate that starts to move but stops and reverses is almost always responding to a safety system. The most common cause is a photocell beam that has been broken by something in the gate path, or a photocell that has shifted out of alignment. Look along the gate opening for anything that might be blocking the beam: a wheelie bin, a garden hose, a parcel left by a delivery driver, a build-up of leaves or debris around the photocell housing. Move anything in the path and try the gate again.
On sliding gates, debris in the track channel can physically obstruct the gate travel. Leaves, gravel, small stones, and ice in winter all cause the gate to meet resistance, which triggers the auto-reverse safety feature. Clear the track channel along its full length and try again. This is the single most common cause of sliding gate faults in autumn across Kent properties surrounded by mature trees.
When the Gate Will Not Close or Opens on Its Own
A gate that opens but will not close is usually being told something is in the way, and that is the safety system doing its job: the Health and Safety Executive warns that beams and edges are what stop a gate trapping someone. The photocells across the opening stop the gate closing if their beam is broken, so a lens covered in dirt, cobwebs or salt, a cell knocked out of line, or a plant growing into the beam will hold the gate open. Motor makers such as BFT tell owners to check exactly this first, then look at the diagnostic lights on the control board, which often show which input is active. Low sun shining straight into a photocell can have the same effect at certain times of day, which is why some gates misbehave only in the morning or evening.
If one leaf closes and the other does not, or the gate stops part way, the motor may be meeting resistance. A dropped hinge, a leaf rubbing on the drive or gravel in the track will trip the force limit, and the gate stops or reverses as it is designed to. On wireless photocells and safety edges, a flat battery produces the same symptoms as a fault.
A gate that opens on its own is usually receiving a command it should not. Common causes are a keypad or intercom handset with a stuck button, a remote held down in a bag or pocket, radio interference, or a faulty wireless sensor. Engineers trace it by disconnecting each command source in turn until the phantom openings stop. Until it is fixed, switch the gate to manual or isolate it, because a gate opening unexpectedly can catch someone off guard. Never bridge out a photocell or safety edge to get a gate working, because those devices are what stop it injuring someone, and Gate Safe recommends that a trained installer checks them every six months.
When You Need an Engineer
Call a professional if the gate does not respond to any input and the power supply is confirmed as live. This indicates a control board, transformer, or motor fault that requires diagnostic equipment to identify. Call an engineer if the gate makes unusual mechanical noises such as grinding, scraping, or clicking, which indicate a gearbox, hinge, or drive mechanism issue that will worsen if the gate continues operating. Call an engineer if the gate operates but does not close fully, does not stop at the correct position, or reverses without visible cause after you have checked and cleared the photocell path.
Do not continue operating a gate that is making mechanical noises or behaving erratically. Switch to manual mode using the release and book a callout. Running a faulty motor accelerates wear and can turn a £200 repair into a £600 motor replacement.
What to Tell the Engineer When You Call
The more information you give the engineer, the faster and cheaper the repair is likely to be. Tell them the motor brand and model (printed on the motor housing label). Describe the fault in specific terms. "The gate starts to close then reverses after two seconds" is more useful than "the gate is not working." Mention anything that happened immediately before the fault, such as a power cut, a vehicle clipping the gate, or a period of heavy rain. Note whether the gate responds to the remote, the wall button, or neither. And confirm whether you have been able to close the gate manually.
Engineers in our Kent network carry van stock for FAAC, BFT, CAME, Nice, and Beninca. If you can confirm the motor brand before the callout, the engineer can check that they have the likely parts on the van, which increases the chance of a first-visit repair.
Preventing Faults Before They Happen
Annual servicing catches the majority of developing faults before they cause a system failure. A service visit includes lubrication of the motor and drive mechanism, safety sensor testing and recalibration, battery backup load testing, hinge inspection, and track cleaning on sliding gates. It costs £120 to £210 in Kent and typically adds years to the working life of the motor while keeping the manufacturer warranty valid.
If your gate has not been serviced in the last 12 months, book a service rather than waiting for a failure. The service cost is a fraction of an emergency callout and repair, and the engineer will identify any components that are approaching the end of their service life before they fail unexpectedly.
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