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Get your free estimateLinear Gate Motor Replacement: The Pasadena Owner’s Guide
A Linear gate motor replacement in Pasadena typically runs $650 to $1,450 installed, depending on your model and whether you need just the motor or the full operator assembly. We stock Linear-compatible motors on our trucks for the most common swing and slide gate series, which means we can usually complete the swap in one visit. Most Pasadena homeowners discover the motor has failed when the gate either stops mid-swing, hums without moving, or simply sits dead after a rainstorm.
The telltale picture is usually this: the gate worked fine yesterday, and today it’s making a grinding noise or not responding to the remote at all. Sometimes there’s a burning smell near the operator box. If that sounds familiar, you’re in the right place.
Which Linear Models This Applies To
We replace motors across the Linear operator lines most common in Pasadena driveways: the APeX series, the L Series (LSO, LDO, LS), the SW series swing arm units, and the older SL slide gate models. Linear has made several design revisions over the years, and the motor in a 2012 LSO50 is not a drop-in match for the motor in a 2020 APeX. The quickest way to identify what you have is to look at the metal tag on the side of the operator box: it lists the model number, serial number, and voltage (115V or 208/230V). Take a photo of that tag before you call anyone.
One specific compatibility gotcha we see regularly in Pasadena: Linear’s APeX line switched from DC motors back to a different AC motor configuration in certain production years, and aftermarket sellers sometimes list a “universal” motor that will not bolt up cleanly. We match OEM Linear parts when available and use only quality aftermarket equivalents that carry the same mounting pattern, shaft size, and capacitor specs. The gate opener itself is the metal box at the base; the motor is inside it. Knowing the difference saves you from buying a full operator when all you need is the motor itself.
We are an independent gate repair company, not a Linear factory service center. That said, Linear is one of the nine brands we service regularly, along with LiftMaster, Mighty Mule, and Ghost Controls.
Styles & brands we work with





Signs Your Linear Gate Motor Replacement Is Failing
- Humming without movement. The motor’s capacitor is usually the culprit when you hear a buzz but the gate doesn’t move. The motor is getting power but lacks the starting torque to turn the drive shaft.
- Gate stops mid-cycle, every time. Overheated windings cause the internal thermal overload to trip. Once the motor cools, the gate works again for a while, then stops in the same spot on the next cycle.
- Burning smell from the operator box. This is insulation breaking down inside the motor windings. It’s not something to ignore: a motor that smells hot is on borrowed time, and continued use can damage the control board too.
- Excessive noise that wasn’t there before. Worn bearings inside the motor housing rattle and grind. Left alone, they eventually seize the armature and take the gate down completely.
- Gate moves slower than it used to. In Pasadena’s summer heat, weakened motor windings lose torque faster. A gate that creeps open on an August afternoon but works okay at night is telling you the motor is fading.
See the difference
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After
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After
Before
AfterReplacement Cost & What’s Included
A Linear gate motor replacement in Pasadena runs $650 to $1,450 installed. Here’s what drives the range:
- Motor only (no control board): $350 to $600 parts, plus $200 to $350 labor.
- Motor plus new capacitor and limit switch assembly: $450 to $750 parts, plus labor.
- Full operator swap (motor, board, all internals): $900 to $1,450 installed, when the existing housing is too far gone to reuse.
Every quote is written and agreed before any work starts. You’ll see the exact part cost and the exact labor line before our tech touches a screwdriver. That’s how we do every job in Pasadena, no exceptions. The replacement is covered by our 365-Day Done Right Promise: if the repair fails within a year, we come back and make it right at no charge for the second visit.
DIY or Call Us?
Here’s the honest split. You can safely check the simple things: Is the breaker tripped? Is the gate physically binding on a hinge or wheel? Did something fall across the track? Those checks cost you nothing and sometimes solve the problem. But swapping a Linear gate motor means working inside a 115-volt (or 230-volt) metal enclosure with live wiring, capacitor discharge risk, and tight mechanical tolerances. A capacitor can hold a charge even with the breaker off. That’s not a scare line, it’s the reason we don’t recommend this as a weekend DIY.
If the tag on your operator says Linear, call us at (626) 657-5425. Cole Rafferty grew up in East Los Angeles and spent two decades learning every operator brand the industry builds. He’ll tell you what it’s doing wrong and what it costs to fix it before anyone signs anything.
FAQs
How long does a Linear gate motor last in Pasadena?
Seven to ten years on average, though Pasadena’s dry summer heat shortens the lifespan of motor capacitors, which often fail at the five to seven year mark before the motor itself goes. A well-ventilated operator box helps.
Can my Linear gate motor be repaired instead of replaced?
Sometimes yes: a bad capacitor, worn brushes, or a failed start relay can be replaced without swapping the whole motor. We’ll always price the repair option first if it makes sense. Call (626) 657-5425 and we’ll diagnose it straight.
How long does the replacement take?
Most Linear motor swaps take two to three hours on site, assuming the gate frame and hinges are in usable shape. We carry common Linear motors on the truck, so there’s usually no wait for parts.
Do you stock Linear motors or do you have to order them?
We stock the most common Linear replacement motors for swing and slide operators on our service vehicles. If your model requires a less common motor, we’ll have it within a few days and give you the written price before we order anything.
Written by Cole Rafferty, Owner, Warden Gate Repair Pasadena at Warden Gate Repair Pasadena, serving Pasadena and nearby areas.