An automatic gate that opens but won’t close may be receiving a hold-open command, detecting an obstruction or responding to a fault. The first useful question is whether it stays open without moving or starts to close and then stops.
Watch only from outside the gate’s path. Don’t try to make it close by disconnecting a sensor or changing a force setting.
A gate that stays fully open
Before arranging a repair, ask the person who manages access whether a hold-open schedule or command is active. An entrance may have been left open for deliveries, an event or a change in operating hours.
If nobody expects it to be open, record any visible display message and whether the problem is constant or intermittent. Leave emergency-access settings alone.
A gate that starts closing and reverses
A closing attempt followed by a reversal gives the technician a specific sequence to investigate. Note where the reversal happens and whether you can see an object in the path from a safe distance.
A sensor issue is one possibility, but that symptom alone doesn’t identify a failed part. Avoid buying a replacement sensor based only on the gate’s behavior.
Why sensors shouldn’t be bypassed
External entrapment-protection devices are monitored by the operator, and faults can restrict how the gate operates (DASMA’s UL 325 guidance). The required devices must be compatible with the operator, so diagnosis should follow its manufacturer’s instructions rather than a generic online workaround (DASMA).
You can note a visibly damaged sensor mount or vegetation near the entrance without touching the equipment. Don’t adjust sensors while someone else is operating the gate.
What to record before calling
Write down whether the gate never attempts to close, reverses immediately or stops partway through travel. Include the time of day if the behavior seems tied to a schedule.
A recent impact, outage or work around the driveway is also worth mentioning. Clear observations are more helpful than repeatedly cycling a faulty gate to see what happens.
When to stop using the entrance
Discontinue use when the gate is damaged or its safety systems aren’t operating properly, as DASMA advises owners in its gate-system safety guidance. Keep people away from the equipment and contact a trained technician rather than forcing the gate closed.
For help in Jacksonville, request gate repair through ACJ. Include the closing sequence and any display message so the service request describes the actual problem.