Start with power
Check power first; it is the easiest cause to rule out. Many gate operators, the motor units that move gates, run on a battery kept charged by house power or by a solar panel. When that battery runs low, the gate may beep, crawl, stop partway, or do nothing at all.
On a gate fed from the house, look for a tripped outlet or breaker, or a power switch on the operator that was bumped off. On a solar gate, think back over the last few days. A string of cloudy afternoons, a panel caked with pollen, or a branch grown over the panel can all leave the battery short.
Surges are the other side of power trouble. After a summer thunderstorm, a gate that suddenly goes dead may have a blown fuse or a damaged control board, and that takes testing with a meter to confirm.
When the remote or keypad is the problem
If the gate opens from one remote but not another, the operator is fine and the trouble sits in that remote. Put a fresh battery in it first. If a keypad lights up but ignores your code, the code may have been changed or erased, or the keypad’s own battery may be low.
If nothing you own will open it, yet the gate still moves freely on its manual release, the receiver may have failed, or its antenna may be loose or broken. Water in the control box and nearby strikes during storms are frequent reasons a receiver quits.
Range matters too. If you have to drive right up to the bars before the gate reacts, suspect a weak remote battery, or an antenna that has slipped down inside the box.
Safety devices that keep a gate shut
Gate operators carry safety devices that stop or reverse the gate when something is in the way. Photo eyes send an invisible beam from one side of the driveway to the other, and edge sensors are soft strips on the gate that stop it on contact. If either one thinks something is there, the gate may refuse to move, or open a few inches and quit.
Look for plants grown across the beam, webs or a wasp nest on a lens, a sensor knocked crooked by a mower, or a hose lying in the gate’s path. Low sun shining straight into a sensor can blind it for part of the day too.
Many newer operators also lock themselves out after hitting an obstacle twice in a row, and sound an alarm. That is the safety system doing its job. Don’t keep pressing the remote: find what the gate struck, then have the operator reset.
When hinges, wheels or the track are binding
Sometimes the operator works and the gate simply can’t move. A swing gate that has sagged onto the driveway, a slide gate off its track, or wheels packed with sand will each make the operator push until its force limit trips. It stops, and it may beep or reverse.
With the operator released as its manual describes, try moving the gate gently by hand. If it drags, sticks or feels much heavier than it used to, the cause is hardware, not electronics. Driveway gate hardware repair explains what we fix on hinges, wheels and tracks.
Double gates often have a drop rod, a pin that slides down into the driveway to hold one leaf still. If someone left it down, the gate will strain against it and stop.
What you can check safely, and when to call
These checks are safe for anyone and need no tools:
- Put a fresh battery in your remote, then try a second remote.
- Check the outlet or breaker that feeds the gate, if it runs on house power.
- Clear the gate’s path and both sensor lenses, and lift any drop rod left down.
- Look at the solar panel for new shade or grime, and rinse it gently from the ground.
- Note any beeps, lights or codes the operator shows.
Leave the control box shut, and don’t pull the operator’s arm off the gate or force a slide gate against its gear. Use the manual release only as the operator’s own manual says.
Call if the gate still won’t move, if it stopped during a storm, if it keeps hitting the alarm lockout, or if it drags by hand. Our page on gate operator repair in Tampa Bay lists what we fix, and you can book a gate visit or call (813) 836-7187. If the gate moves but slows down by evening, read gate opener power and batteries.