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Get your free estimateLinear Gate Motor Replacement: The Orange County Owner’s Guide
If your Linear gate operator has stopped moving the gate, we can usually replace the motor assembly the same day we come out, for a typical installed cost of $450 to $850 parts and labor across Orange County. The most common first symptom is a gate that hums or clicks at the operator but doesn’t budge, or one that starts moving and then stalls halfway. You’ll likely discover the failure exactly when you need the gate most: pulling in after a long commute, waiting for a delivery, or heading out early while it’s still dark. In most Orange County neighborhoods, from Yorba Linda to San Clemente, we carry common Linear motor modules on the truck and can have the gate working again in a couple of hours.
Before we go further, a note on who we are: Portcullis Gate Repair Orange County is an independent service company. We are not affiliated with Linear or its parent company, but we stock and install genuine Linear parts and quality aftermarket equivalents every week.
Which Linear Models This Applies To
Linear has been building gate operators for more than 50 years, and their residential line splits into two main families: the older LSO and LSW series (sold through the early 2010s) and the current LRA, LCE, and PRO series. The motor itself is not universal across these lines. An LSO swing motor will not bolt into an LRA slide unit, and the control board’s motor-output wiring differs between series. That matters because some online listings imply one motor fits all Linear gates. It doesn’t.
When we arrive, we identify the operator model from the label on the control board cover or the chassis underside, then match the motor by part number and mounting pattern. For older LSO units where Linear has discontinued the original motor, we use quality aftermarket equivalents with the same RPM, torque, and thermal duty rating. For current-model machines, we install genuine Linear whenever it’s available, because the mounting tolerances and encoder feedback are designed to the board’s exact specifications.
One compatibility gotcha that bites Orange County owners every season: Linear build a few models with DC motors with integrated RPM sensors and a few with AC induction motors with no sensor. Swapping one type for the other without reprogramming the control board leads to erratic behavior or a fried board within days. We verify motor type from the nameplate before we quote the job.
Styles & brands we work with



Signs Your Linear Gate Motor Replacement Is Failing
- Humming or buzzing with no movement. The motor is getting power and trying to spin, but the internal start capacitor or the gear coupling has failed. On Linear swing arms especially, this is the classic “it’s trying, but it can’t” failure mode.
- Gate moves a foot, then stops and reverses. The motor’s thermal overload is kicking in because the armature winding is shorting under load. The control board reads it as an obstruction and reverses. This gets worse as the motor heats up through the day.
- Burning smell near the operator when the gate cycles. Insulation on the motor windings is breaking down. It runs hot, then eventually trips the breaker or seizes completely. In coastal Orange County air, salt-carrying moisture accelerates this on unsealed motors.
- Manual release won’t help the gate move smoothly. If the gate is heavy to push even with the operator disengaged, the motor has been working against a hardware problem for long enough to destroy its own bearings and gearbox. The motor is a victim, not the root cause.
- Intermittent operation that worsens with heat. On warmer days in places like Anaheim Hills or Mission Viejo, epoxy-sealed control modules expand, but older Linear motors with open-frame armatures overheat and cut out. Cold mornings, it works. Hot afternoons, it fails.
See the difference
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AfterReplacement Cost & What’s Included
Here’s the honest breakdown for Orange County. On most residential Linear swing gates, an installed motor swap runs $450 to $650. Slide gate motors run slightly higher, typically $550 to $850, because the motor is heavier, the gearbox mates to a rack, and the install takes longer. Those numbers include the motor, any needed capacitor, gear coupling, mounting hardware, labor, and the full system test afterward. If the control board also needs replacing (which happens roughly one job out of five, because a failing motor often damages the board’s output relays), add $180 to $320.
Every quote we give is in writing before any work starts. That’s a rule here, not a courtesy. You’ll know the cost of the motor, the labor, and any secondary part before we touch the gate. Dean Prescott made that the founding practice when he built the company, and we haven’t changed it.
Here’s the pricing in the simple form we use at the truck:
| Linear Gate Motor Replacement | Installed Price Range |
|---|---|
| Swing gate motor (residential) | $450 – $650 |
| Slide gate motor (residential) | $550 – $850 |
| Control board (if needed) | $180 – $320 |
| Aftermarket motor for discontinued Linear | $500 – $700 |
Every installed motor comes with the 365-Day Done Right Promise. It’s written on the invoice: if the work fails inside that year, we return and fix it at no charge. Not a prorated warranty, not a parts-only warranty. We come back.
DIY or Call Us?
There are things you can check safely before calling. Does the breaker have power? Is the manual release fully seated? Is anything visibly blocking the gate path? Those are all fair game and take two minutes.
Replacing a Linear gate motor is not one of the safe DIY jobs. The gate itself is heavy, and the motor is wired into line voltage on AC models and high-current DC on the newer ones. Wrong wiring can destroy the new motor and the control board, turning a $600 job into a $1,200 one. The gear coupling and torque limiter also need to be set correctly or the gate can slam and injure someone. We replace these weekly, and every time we respect what a runaway gate leaf can do. Let a trained tech handle the motor. Call us at (820) 529-0801 and we’ll get you on the schedule, most days within the same window we give on the phone.
FAQs
Most Linear residential motors last 8 to 12 years in Orange County with regular use, though coastal salt air in places like Huntington Beach or Laguna Niguel can cut that to 6 to 8 years on unsealed motors. If yours is past the decade mark and failing, replacement is the better financial call than trying to squeeze another year out of a tired motor.
Sometimes, but not usually. A bad start capacitor is a $40 fix, and we’ll always check that first. But worn armature windings, failed bearings, or a scored gearbox are not economically repairable on a residential Linear. The labor to rebuild exceeds the cost of a new motor, and the rebuilt part won’t last. Call (820) 529-0801 and we’ll tell you honestly which situation you’re in.
Most Linear motor swaps take 2 to 3 hours from arrival to final test. That includes removing the old motor, installing the new one, setting the torque limiter and limit switches, and running the full obstruction and safety-edge test. If the control board needs replacement too, add about 45 minutes.
We stock common Linear-compatible swing and slide motors on our service vehicles, plus quality aftermarket equivalents for the discontinued LSO and LSW series. For less common larger or commercial units, we can have the right motor in hand within a day or two, and we’ll tell you the arrival window before you commit. We also keep parts for LiftMaster, Mighty Mule, and Ghost Controls on the truck for homes with multiple operators.
Written by Dean Prescott, Owner & Lead Technician, Portcullis Gate Repair Orange County at Portcullis Gate Repair Orange County, serving Orange County and nearby areas.