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Before
AfterLinear Gate Motor Replacement: The San Fernando Owner’s Guide
We replace Linear gate motors throughout San Fernando, and most complete swap-outs run between $675 and $1,250 installed, including the new motor, mounting hardware, limit setup, and a documented photo record of the finished job. The most common way homeowners discover the motor has failed is simple: the gate stopped responding to the remote, or it hums but won’t move, or it opens halfway and reverses for no reason you can see. We stock Linear-compatible motors and parts on the truck, so nine times out of ten the replacement happens the same day we diagnose it.
Linear operators, especially the older APeX and LDO series, die in predictable ways. The capacitor goes first, then the limit switch assembly drifts, then the motor itself burns out trying to run against a gate that’s no longer moving freely. If you’re hearing a low hum from the control box and the gate sits still, that’s not a gate problem. That’s a motor that’s stalled under load, and every minute it sits powered like that shortens what’s left of the windings.
Which Linear Models This Applies To
We work on the full spread of Linear residential operators that show up in San Fernando driveways: the LDO50 and LDO33 swing-arm units, the APeX series, the older LS and LD slide-gate motors, and the Linear-branded units that came installed on many mid-2000s tract-home gates in this part of the Valley. The motor itself is almost never the only thing that needs attention. When a Linear unit fails, we check the capacitor, the limit cams, and the bracket alignment before we unbolt anything.
Here’s the compatibility gotcha most people run into: Linear changed motor mounting dimensions between the LDO and APeX series, so a motor that fits one will not bolt cleanly onto the other without an adapter plate. If the model label is gone, we identify the series by measuring the bolt spacing on the motor flange and matching it against the arm casting. It’s a five-minute check that prevents the wrong part from ever going on the post.
On the OEM-versus-aftermarket question: Linear OEM motors from Nortek come with a factory warranty and exact-fit mounting. A good aftermarket equivalent, when the OEM unit is discontinued, can run 15 to 20 percent less and perform just as well when the capacitor is properly matched. We’ll tell you which one fits your gate and your budget, in writing, before any work starts. We’re an independent service company, not a Linear dealer, which means we stock what works rather than what one brand tells us to push.
Signs Your Linear Gate Motor Replacement Is Failing
- The gate hums but does not move. The motor is getting power but the start capacitor has failed, so there’s no torque to turn the arm. This is the single most common Linear failure we see in San Fernando, and it’s repairable if caught early before the windings cook.
- The gate opens a few inches, stops, and beeps or reverses. The limit switch assembly has drifted or the motor is hitting an obstruction reading. If the limits were set correctly and this started suddenly, the motor is likely binding internally.
- The remote works but the gate moves very slowly. A tired capacitor or worn motor brushes mean the gate is running at reduced power. Left alone, the motor will eventually stall mid-travel and refuse to move at all.
- The gate opens on its own or won’t stay closed. This can be a failing limit switch inside the motor housing, not a control-board issue. When the internal limit cam strips, the motor loses its stop reference and over-travels.
- You smell a hot electrical odor near the control box. That’s overheated windings. Kill power to the operator at the breaker and call us. A motor that’s been running hot is a fire risk and should not be left powered.
BeforeAfterReplacement Cost & What’s Included
In San Fernando, a Linear gate motor replacement lands between $675 and $1,250 installed. The spread comes down to a few things: whether the existing arm bracket is intact or needs to be re-fabricated, whether your unit is a swing or slide operator, and whether we’re replacing the motor only or the motor plus the capacitor and limit assembly as a set. We quote the flat price in writing before we unbolt a single thing, under Haven Standard Clause 1. No discovery upcharge, no surprise labor bump at the end.
Every replacement includes the motor, mounting hardware, limit-switch setup to your gate’s exact travel, safety-edge and photo-eye verification, and a photo log of the entire job: old part out, new part in, final limit readings. That record is handed to you and filed in our job file. If anything about the motor or installation isn’t right within 365 days, we make it right at no charge under our 365-Day Done Right Promise. That’s the entire reason we document what we left behind.
DIY or Call Us?
If you’re comfortable with a multimeter, there are two things you can check before you call: the capacitor and the incoming voltage. A swollen or leaking capacitor is the issue maybe 30 percent of the time, and it’s a $40 part. But if the motor itself has failed, this is not a safe weekend project. Linear operators run on 110 or 220 volts, the drive arm is under mechanical tension against the gate’s weight, and an improperly set limit switch will send a 400-pound gate past its stop and into a car, a fence, or a person.
The honest split is this: electrical checks, fine. Mechanical disassembly of the operator arm, motor removal, and limit recalibration? That’s where we see DIY jobs go wrong, and we’ve been called to enough of them in San Fernando to know the pattern. If you’ve already pulled the cover and you’re not sure what you’re looking at, stop there. Call us at (747) 260-0589 and we’ll come tell you exactly what it is and what it costs, in writing, before any work starts.
FAQs
Most Linear residential motors in this climate run 7 to 10 years before the capacitor or motor windings give out. The San Fernando Valley heat shortens that if the operator box sits in direct afternoon sun. A shaded control box and a gate that moves freely will add years to any Linear motor.
Sometimes, and we’ll tell you honestly which side your motor falls on. Capacitor failures and drifting limit switches are repairable for under $200 in most cases. Burned windings or a seized gear train mean replacement, and that’s the more common outcome once the motor is humming without movement. Call (747) 260-0589 and we’ll diagnose it in writing.
A standard Linear motor swap on a swing gate takes 2 to 3 hours from unboxing to final limit test, assuming the bracket is intact and the gate itself is in good mechanical shape. Slide-gate motors run closer to 4 hours. We quote the time as part of the written price, so you know the full number before we start.
Yes. We keep Linear-compatible motors, capacitors, limit assemblies, and arm brackets on the truck for the most common LDO and APeX series units in San Fernando. If your gate needs a part we don’t have on board, we can usually have it in hand within a day or two. We’re not exclusive to Linear; we also work on LiftMaster, Mighty Mule, Ghost Controls, and the other major gate-automation brands, so whatever is on your post, we can service it.
If your Linear has quit, don’t guess at it. Call Vance Gate Repair San Fernando at (747) 260-0589. We’ll name what we found, name what it costs, and name what we left behind. A live person answers, day or night, and you’ll have a written price before any tool comes out of the truck.
Written by Adrian Vance, Owner, Vance Gate Repair San Fernando at Vance Gate Repair San Fernando, serving San Fernando and nearby areas.