Can I disconnect the photo eyes so it closes?

Only briefly, to confirm which device is at fault, and never left that way. A gate closing with no safety sensing is a serious hazard around children, pets, and vehicles.

Why did this start right after a storm?

Wind knocks eyes out of alignment, water gets into loop cuts and housings, and lightning surges kill detectors. Post-storm calls for exactly this symptom are common here.

The gate closes with the remote but not on its own — why?

That points at the auto-close timer rather than a safety device. Check whether timer-to-close is enabled on your board.

Operation & Sensors

Automatic Driveway Gate Opens but Will Not Close

Opens fine, won't close is the single most diagnosable fault on an automatic gate, because gate operators are deliberately built to fail in the open position. Anything that makes the operator unsure whether the closing path is clear will leave the gate standing open rather than risk closing on someone.

So the question isn't why it won't close — it's which input is telling it not to. Start with the safety devices.

(469) 654-7729 Book a repair

Most likely causes

1.Photo eyes blocked or misaligned

A spider web across the lens, mud, a knocked bracket, sun glare straight into the receiver, or a post that has shifted a few degrees. Number one cause.

2.A safety loop or exit loop stuck on

A detector that thinks a vehicle is still in the opening will hold the gate open indefinitely. Water in the saw cut does it too.

3.Reversing edge or wand triggered

A damaged edge sensor or a bent exit wand reports a constant obstruction.

4.Timer-to-close disabled or set to zero

Some setups only auto-close if timer-to-close is enabled. If it was switched off during a service, the gate waits for a close command that never comes.

5.Hold-open mode left on

Many operators have a hold-open or vacation setting, sometimes triggered by a key switch, an intercom, or a fire-service input.

6.Something genuinely in the way

A trash bin, a parked car in the sensor zone, tall grass across a beam.

Step-by-step checks

1
Walk the opening and look at the beams
Both photo eye housings: are the lenses clean, are the indicator LEDs steady, are the units pointing at each other? Wipe the lenses and check for webs.
2
Test the beam
Wave your hand through it and watch for the LED to change. If nothing changes, the pair isn't seeing each other at all.
3
Realign a knocked eye
Loosen the bracket, aim it straight at its partner, and tighten. Small angles matter a lot over a wide driveway.
4
Clear the opening entirely
Move vehicles, bins, and anything sitting in the closing path, then send a close command.
5
Check the loop detector LEDs
A detector showing a permanent call means it thinks metal is present. Look for water in the saw cut or damaged loop wire.
6
Check for a hold-open input
Key switch turned, intercom in hold mode, timer-to-close switched off. Read what your board's manual says about the setting.
7
Look for storm damage after bad weather
Hail, wind, and lightning around DFW take out photo eyes and loop detectors regularly.

When to call a gate technician

Never bypass a safety device and leave it that way. If the eyes and loops are clean, aligned, and still holding the gate open, the device or the board has failed and needs replacing — call us and we'll make it safe and working, not just working.

Call (469) 654-7729

Services this relates to

Repair

Gate Repair & Service

Automation & Access

Automatic Gate Installation

Automation & Access

Access Control & Intercoms

Can I disconnect the photo eyes so it closes?: Only briefly, to confirm which device is at fault, and never left that way. A gate closing with no safety sensing is a serious hazard around children, pets, and vehicles.
Why did this start right after a storm?: Wind knocks eyes out of alignment, water gets into loop cuts and housings, and lightning surges kill detectors. Post-storm calls for exactly this symptom are common here.
The gate closes with the remote but not on its own — why?: That points at the auto-close timer rather than a safety device. Check whether timer-to-close is enabled on your board.

Related troubleshooting guides

Gate opens by itself at night

Read guide

An automatic driveway gate that opens but will not close often has a blocked photo eye, an active vehicle loop detector, a hold-open command, or mechanical resistance. Check for visible obstructions and controller status messages first. Do not bypass safety devices, increase closing force, or repeatedly cycle a gate that binds or reverses.

Home › Troubleshooting › Automatic Driveway Gate Opens but Will Not Close

Why does my automatic gate open normally but refuse to close?

Opening successfully does not rule out an operator fault. A gate controller can accept an opening command while preventing closing because a safety input or access-control device remains active.

Common causes include:

Photo-eye obstruction or misalignment: Dirt, vegetation, or a shifted mounting bracket can interrupt the beam across the driveway.
Vehicle detector holding the gate open: A vehicle over a loop, an active detector output, or a loop fault may prevent closing, depending on the installation.
Hold-open command: A key switch, keypad schedule, access-control system, or controller setting may intentionally keep the gate open.
Disabled automatic-close timer: Some systems require a separate close command when the timer is off.
Mechanical resistance: A sliding gate may catch on debris or a damaged roller. A swing gate may drag because of hinge wear or sagging.
Position, wiring, or operator fault: Limit switches, encoders, monitored safety circuits, and control-board inputs can prevent a closing cycle.

The operator’s model-specific manual matters. Indicator colors and fault codes are not interchangeable between brands.

What can I safely check before calling a gate technician?

Keep people, pets, and vehicles outside the gate’s travel and pinch-point areas. Stop checking if the gate moves unpredictably, appears unstable, or has exposed wiring.

1. Record what the gate actually does

Does it remain completely still, start closing and reopen, or fail only after rain? Note the operator model and any externally visible display message. These details help separate a control-input problem from physical resistance.

Do not remove electrical covers to look for a code.

2. Look for an interrupted photo-eye beam

Check for leaves, mud, spiderwebs, or objects in front of the photo eyes. Clean accessible lenses gently according to the manufacturer’s instructions. Look for loose brackets without moving wiring or putting your hands near the gate mechanism.

Our guide to photo-eye safety sensor bypass questions and testing precautions explains the safety concerns. Do not jumper sensor terminals or leave protective devices disconnected to make the gate close.

3. Clear the vehicle detection area

Move vehicles away from the entrance and any visible loop cuts in the pavement. A loop’s function cannot reliably be identified by its location alone; it may request opening or help prevent closing.

If the problem appears during wet weather, see our guide to a driveway gate loop detector that keeps triggering in rain. Record the pattern rather than changing detector sensitivity at random.

4. Check normal user controls

Look for an engaged hold-open switch or an authorized access schedule. Consult the manual before changing timer settings. A gate that closes with its normal control but never closes automatically may have a timer or hold-open issue rather than a failed motor.

5. Inspect the travel path from a safe position

Look for stones in a sliding track, a bent guide bracket, loose hardware, or a swing gate dragging on the driveway. Before clearing anything within the travel area, isolate power and follow the manufacturer’s procedure; battery backup may still power the gate.

Do not force the gate, loosen hinges, or release a heavy gate without understanding how it will be secured.

What does each closing symptom usually point to?

Use these observations to narrow the inspection—not to justify bypassing a fault.

What you observeWhat it may indicateAppropriate next step

| Gate stays open without attempting to move | Active safety input, hold-open command, timer setting, or controller fault | Check user controls and record visible status messages |Gate starts closing, then reverses | Obstruction, safety activation, binding, or position/force-detection issue | Stop repeated tests and inspect for visible interference |Gate closes on command but not automatically | Disabled timer or a persistent command/input affecting automatic closing | Check the operating mode against the manual |Failure appears after rain | Moisture affecting loop wiring, sensors, connections, or electronics | Record wet-weather behavior and arrange electrical diagnosis

Motor runs or hums but gate does not moveMechanical jam, disengaged drive, or drive-system faultStop operating it and request service

One symptom can have several causes. For example, a reversing gate does not automatically need more closing force. Increasing force can hide binding and increase injury risk.

Should I repair the gate or replace the opener?

A gate that will not close does not automatically need a new operator. The decision should follow checks of the gate structure, safety devices, control inputs, and drive system.

FindingRepair or adjustment may make sense when…Replacement may make sense when…

| Photo-eye fault | Alignment, mounting, wiring, or a compatible sensor can be corrected | The sensor has failed and needs a compatible replacement—not necessarily a new opener |Mechanical binding | Track, rollers, hinges, or alignment can be repaired | Structural damage makes individual repairs impractical |Operator or control-board fault | The fault is isolated and compatible parts are available | Necessary parts are unavailable or the operator has substantial damage

Repeated system faultsTesting identifies a specific, correctable causeA documented assessment finds multiple damaged or incompatible components

Ask what failed, how it was tested, and whether the proposed work includes checking closing travel and safety-device operation. An opener replacement will not correct a bent track or a sagging gate by itself.

When should I stop troubleshooting and call a gate technician?

Stop if the gate drops, leans, grinds, moves without a clear command, or has damaged safety devices. Burning smells, exposed conductors, water inside electrical equipment, and repeated protective-device trips also call for professional diagnosis.

A technician can check controller inputs, loop-detector operation, sensor wiring, travel limits, and mechanical resistance. Keep the operator model, fault message, and failure pattern available. Do not repeatedly reset a faulting system or treat a successful reset as proof that the underlying problem is fixed.

Can I close an automatic driveway gate manually?

Sometimes, but only using the manufacturer’s manual-release procedure. Keep the travel area clear, isolate all power sources as instructed, and secure the gate against uncontrolled movement. Heavy or sloping gates can move unexpectedly after release. If the gate is jammed, unstable, or difficult to control, leave it alone and request service.

Why does my gate refuse to close only at night?

A scheduled hold-open command is one possibility. Sensor alignment, changing light conditions, or condensation can also affect some installations. Compare the failure time with access schedules and record any sensor or controller indications. Do not assume darkness itself is the cause or disable the photo eyes to test that theory.

Will replacing the remote battery fix a gate that stays open?

Usually not if the same remote consistently opens the gate. A weak battery can cause unreliable commands, but it does not explain every closing failure. Check whether an authorized wall control or keypad behaves the same way. If all controls fail to close it, investigate safety inputs, settings, and operator faults.

Is it safe to leave the gate open until it is repaired?

That depends on whether the gate can be secured against unexpected movement and whether the open entrance creates other risks. Follow the manufacturer’s shutdown instructions rather than wedging the gate or disconnecting sensors. Keep people away from damaged equipment and arrange service if you cannot safely immobilize the gate.

For automatic driveway gate troubleshooting in the Dallas–Fort Worth metroplex, call Morrison Gate & Fence at [(469) 654-7729](tel:+14696547729) to discuss the symptoms and request an estimate.