A gate that closes normally but refuses to open has already proved its motor, its board and its power supply are fine. That single fact eliminates most of what a general troubleshooting guide would have you check, and points at a much shorter list.
Also described as “gate won’t open”, “gate won't open”, “gate closes but won’t open”, “gate closes but won't open”.
A gate that closes but will not open is a different fault from a dead gate — we diagnose it as one
We test the open limit and the receiver before anyone talks about a motor
Manual release walked through over the phone if you are trapped in or out
Access blocked
You cannot get in or out. If a vehicle is trapped behind the gate, every operator has a manual release that will let you move it by hand — find that before anything else.
Check these first — before you call anyone
Some causes of gate won’t open you can resolve yourself in minutes. We would rather you found one than paid us to.
1
Try every different way of opening it
Remote, keypad, phone app, intercom and the wall button inside. If any one of them works, the gate is mechanically fine and you have narrowed the fault to a single input — which is both the cheapest and fastest thing to fix.
2
Change the remote battery
A dying remote battery classically produces exactly this symptom: it works close up and not from the car. It costs a few dollars and it resolves a surprising share of these calls.
3
Walk the opening path
With the operator released, push the gate through its full opening travel by hand. Look for gravel, a grown branch, a dropped hinge grounding the leaf, or a vehicle parked inside a swing arc. If it fights you by hand, the fault is mechanical.
4
Find the manual release before you need it
If you are trapped, every operator has a manual release — usually a key or lever on the housing. Knowing where yours is turns an emergency into an inconvenience. Call us and we will walk you through it on your model.
What not to do
Do not pull or drive through a gate that will not open. A gate leaf is heavy and a vehicle will win, expensively.
Do not disable the safety sensor protecting the opening arc to force it through.
Do not keep pressing the remote repeatedly. If an obstruction is stopping it, repeated attempts drive the operator into that obstruction.
Do not adjust limit switches by trial and error unless you know the model’s learn procedure — a mis-set limit can drive the gate past its stop.
If your gate still closes on command, the power supply is good, the transformer is good, the board is executing commands, the motor turns and the gearbox drives. Those are the expensive parts, and a gate that closes has just demonstrated all of them working.
What remains is everything specific to the open direction: the open limit switch or encoder position that tells the operator where "open" is, the input that carries the open command, and anything mechanical that obstructs travel in that direction only. That is a short list, and it is mostly inexpensive.
Why direction-specific faults happen at all
An operator does not have one motor for opening and another for closing — it reverses the same one. So a fault that affects only one direction is almost never the motor. It is either a limit that has drifted, a command that is not arriving, or a physical obstruction the gate only meets partway through its opening arc.
Limits drift for ordinary reasons. A swing gate settles on its hinges over its first year; a slide gate’s chain stretches; clay soil moves a post a fraction of an inch each season. The operator keeps using the position it was taught on installation day, and eventually that position no longer matches the gate.
What causes it, most likely first
Each of these looks different at the gate. The “how to tell” line is what separates it from the one above.
Open limit switch or encoder position out of adjustment
most common
How to tell
The gate closes perfectly and either does not start opening at all, or moves an inch and stops as though it believes it is already open. On operators with a learn mode, a limit that has drifted is the first suspect.
The fix
Re-setting the open limit, then re-learning the travel. A short visit, and worth doing properly rather than nudging — a limit set to compensate for a sagging gate hides the sag until it gets worse.
Remote or receiver fault affecting the open command
most commonYou can often fix this
How to tell
Test a different trigger. If the keypad opens it but the remote does not, or the wall button works and nothing else does, the fault is in how the command arrives, not in the gate. A remote that opens the gate from two feet away but not from the road is a weak battery or a failing receiver.
The fix
Battery, reprogramming, or receiver replacement. This is routinely the cheapest fix on the page and it is worth ruling out first.
Obstruction in the opening path only
commonYou can often fix this
How to tell
Watch the gate’s full opening arc with the operator released. Gravel built up behind a slide gate, a branch grown into a swing gate’s path, or a vehicle parked inside the arc will stop travel in one direction while closing stays clear.
The fix
Clearing it, which frequently costs nothing. Worth checking after storms and after landscaping work, which are the two usual sources.
Open-direction safety input triggered
common
How to tell
Some installations have a photo-eye or edge sensor protecting the opening arc, particularly where a gate swings toward a footpath. A fault or misalignment there blocks opening only. Check the board for a triggered safety indicator.
The fix
Realignment or sensor replacement. Never bypassing — that sensor exists because something can be standing where the gate is about to go.
Mechanical binding that only manifests in the open direction
common
How to tell
Release the operator and push the gate open by hand. A slide gate whose track is fouled at the open end, or a swing gate whose hinge has dropped so the leaf grounds as it swings back, will fight you in one direction and move freely in the other.
The fix
Track clearing, roller replacement, or resetting a hinge or post. Mechanical, and the operator was never the problem.
Access control or timer holding the gate closed
less common
How to tell
More common on commercial and HOA installations. A telephone entry system, timer, or access control panel can be configured to refuse opening outside set hours or after a failed credential. The gate is not faulty — it is obeying a rule.
The fix
A configuration change at the controller. Worth checking before a technician is dispatched for a fault that does not exist.
Repair, or replace?
This is one of the better faults to have. A gate that still closes has proved the expensive half of the system works, and the causes that remain are limits, commands and obstructions — nearly all of them inexpensive and often same-day. Expect a small part or an adjustment rather than an operator.
Usually a repair
Open limit switches and travel re-learning
Remotes, receivers and keypads
Obstructions in the opening path
Safety sensors covering the open arc
Track, roller and hinge faults that bind in one direction
Sometimes a replacement
A receiver on an operator whose remotes are no longer manufactured
An operator whose limit hardware has failed and is no longer available as a part
Why this happens in Dallas–Fort Worth
Why open limits drift in this soil
Much of Dallas–Fort Worth sits on Blackland Prairie clay, which swells in the wet and shrinks hard through a Texas summer. A gate post set in that ground moves a little each season, and a gate leaf is a long lever amplifying the movement at its far end.
The operator, meanwhile, is still using the open position it learned on installation day. After a few seasons the taught position and the gate’s actual position no longer agree, and the symptom that appears first is usually a gate that will not complete — or start — its opening travel. It reads like an electrical fault and it began in the ground.
The gate closes fine but will not open. Is the motor dead?
Almost certainly not. Opening and closing use the same motor running in opposite directions, so a motor that closes the gate is working. A fault affecting one direction only points at the open limit, the command reaching the operator, or something physically in the opening path — all much cheaper than a motor.
My remote will not open the gate but the keypad does. What is wrong?
The gate is fine and the fault is in the remote path. Start with the remote battery, which is the most common cause and costs a few dollars. If a fresh battery does not fix it, the remote needs reprogramming or the receiver is failing — both small jobs.
I am trapped behind the gate. What do I do right now?
Every gate operator has a manual release, usually a key or lever on the operator housing, that disconnects the motor so you can push the gate by hand. If you are not sure where yours is or how it works, call us and we will talk you through it for your model. Do not try to force or drive through the gate.
The gate opens a few inches and stops. Is that the same problem?
It is closely related. Stopping immediately after starting usually means the operator believes it has reached the open position — a limit or encoder fault — or it has met resistance and its obstruction detection has stopped it. If it stops much further into the travel, see our page on a gate that stops halfway.
Could a power cut have caused this?
It can. Some operators lose their learned limit positions after a power interruption and need their travel re-learned before they will run a full cycle again. If the gate started behaving this way straight after an outage or a storm, mention it — it points us at the right answer immediately.
Tell us what your gate is doing
Include what you found in the checks above — where it stops, what you heard, whether it moves by hand. It genuinely shortens the visit, and it means we arrive with the right part more often.
We answer the phone 24/7. If you are stuck, call and we will talk you through the manual release before anyone arrives. See what counts as a gate emergency.
