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Get your free estimateLinear Gate Motor Replacement: The Los Angeles Owner’s Guide
If your Linear gate opener motor has seized, burned out, or lost torque, the fix is usually a direct motor replacement rather than a full system swap. We stock Linear-compatible motors on our trucks and typically install them for $600 – $1,400 in Los Angeles, depending on your model and whether the control board needs replacement too. Most homes with a failing Linear motor notice it first as a gate that starts, stutters, then stops halfway or won’t open at all under load.
Linear openers are common across LA residential gates, and the motor is the workhorse part. When it goes, it rarely goes quietly: you’ll hear humming with no movement, watch the gate crawl instead of swing, or trip the breaker repeatedly. The motor itself is designed to last 8 to 12 years under normal use, but in Los Angeles, heat and coastal moisture shorten that window. A motor that works on a cool morning may fail by a hot afternoon in the Valley. That’s not the motor being stubborn, that’s thermal wear inside the windings.
We’re an independent gate repair company in Los Angeles, not affiliated with Linear, but we work on these openers daily and keep the motor part numbers that matter in stock.
Which Linear Models This Applies To
Linear gate motors are used across several operator lines, and the replacement motor must match the operator’s model and voltage. The most common we see in Los Angeles are the Linear LRA series (LRA-S, LRA-D swing models), the linears for slide gates like the SL and SLR models, and older units paired with the APeX controller. If your operator uses a DC motor, the plug style and gear mounting points differ from the AC units, so swapping one for the other isn’t a simple bolt-in job.
To identify your exact motor, open the operator cover and look at the metal tag on the motor housing. It lists the part spec like 24VDC, 1/2 HP AC, or 115V and the RPM rating. You’ll also see a Linear part number, often starting with “MTR” or similar. A quick photo of that tag to our techs saves us hours of guesswork and gets you an honest quote faster. For Linear specifically, we prefer OEM replacement motors when they’re available because the mounting bracket and gear engagement are factory-matched. When an OEM motor is backordered, we use quality aftermarket equivalents only when the amp draw and bolt pattern are exact matches for your operator model.
One compatibility gotcha worth knowing: Linear changed motor mounting hardware between older LRA-S1 units and later revisions. A motor that looks identical from the outside may not seat correctly in a pre-2012 housing. We check the mounting boss spacing before committing to a part, which eliminates the frustrating return-and-wait cycle that plagues DIY parts orders.
Styles & brands we work with





Signs Your Linear Gate Motor Replacement Is Failing
- Humming sound but no gate movement: The motor is receiving power but the rotor can’t turn, often due to seized bearings or a failing start capacitor. The motor is burning energy and overheating as it stalls.
- Sluggish opening and closing: The motor has lost torque output, usually from worn brushes in DC units or degrading windings in AC motors. A gate that once swung fast and now creeps through its arc is telling you it’s on the way out.
- Intermittent operation: Thermal overload protection inside the motor shuts it down when it gets too hot, then resets once cooled. If your gate quits mid-afternoon on hot days and works fine at night, that’s classic thermal protection cycling.
- Tripped breaker when the gate activates: Internal winding shorts cause the motor to pull excessive current, enough to trip a 15-amp circuit. This isn’t a limit switch problem, it’s a motor winding failure.
- Burning electrical smell near the operator box: The insulation on motor windings is breaking down from heat and age. This is the most urgent sign. Stop using the gate, cut power at the breaker, and call us.
Replacement Cost & What’s Included
For most single-family homes in Los Angeles, a Linear gate motor replacement runs $600 – $1,400 fully installed. Your final price depends on the operator series, whether you have a swing or slide gate, and if the control board needs replacing alongside the motor. We quote parts and labor separately so you can see exactly what you’re paying for. No bundled mystery pricing.
Every motor replacement includes removal of the old motor, mounting the new one, gear and lubrication check, limit and force adjustments, and a full cycle test under load. Before we begin anything, you get a written price. That’s non-negotiable with us, and it’s part of every Calder Gate Repair job in Los Angeles. The number on the invoice is the number you approved at the door. If that ever isn’t true, you don’t pay the difference.
Our 365-Day Done Right Promise covers the motor and our labor for a full year. If the replacement motor fails or the gate still binds within 365 days, we return at no charge. That’s in writing on every work order.
See the difference
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AfterDIY or Call Us?
You can safely check a few things before calling: confirm the breaker isn’t tripped, look for a blinking or solid LED on the control board, and watch whether the motor hums when you press the remote. If the motor hums and the gate doesn’t move, you have a motor or capacitor failure. There’s no safe way to rebuild a seized or shorted Linear motor at home.
Here’s where DIY goes wrong with this repair. Linear swing and slide operators store serious mechanical energy, even with the power off. A gate under tension from a hardware bind can kick when the motor unbolts. Without proper bracing, the gate can swing or slide freely and cause injury. Line voltage connections inside the operator box can be live even when the breaker seems dead, especially on older LA homes where panel labeling isn’t reliable. We do this work in full personal protective equipment, with the gate physically secured, and we test every connection before restoring power.
If your Linear motor is humming, stalling, or tripping a breaker, call (213) 322-1415. We’ll ask a few pointed questions, quote the realistic price over the phone, and tell you what’s worth fixing versus replacing. No pressure, no speculation, just numbers.
FAQs
Expect 8 to 12 years from an original Linear motor in Los Angeles, though coastal moisture in areas like Playa del Rey or San Pedro can shorten motor life compared to inland homes. Replacement motors, installed correctly, carry a 1-year parts and labor warranty from us and typically match or beat the lifespan of the originals. Call (213) 322-1415 if your motor is older than eight years and acting up. We’ll tell you honestly whether it’s worth one more repair or if replacement is the smarter play.
Sometimes yes, when the problem is a start capacitor, worn brushes in DC units, or bound gears. But when windings are shorted or burned, motor rebuilds aren’t economical or reliable. The cost difference between repairable and replaceable often swings by $150 or less once you factor labor. We’ll diagnose before quoting, and since we only bill what we quoted before work starts, you’ll never face a surprise “we just rebuilt it” invoice. Call (213) 322-1415 and describe what the gate is doing. That’s usually enough for us to give you a real price range.
Most Linear motor replacements are completed in 90 minutes to 3 hours, including removal, mounting, gear alignment, and full load testing. The real time factor is making sure the new motor engages the existing gear train correctly, which is a five-minute job done wrong by many and a thirty-minute job done right by us. We always test under full gate weight before we leave, so you don’t call us back tomorrow. If anything fails within 365 days, we come back free. That’s our 365-Day Done Right Promise in action.
We stock the most common Linear motor part numbers for LRA and SL series operators on our service trucks throughout Los Angeles, and we can usually have same-day replacement done on swing gate models. Slide gate motors are less common to carry because the voltage and mounting specs vary more between model years, so those might be next-day. Call (213) 322-1415 with your model number and we’ll tell you if your motor is on our truck right now.
Your replacement includes the new motor, removal and disposal of the old unit, mounting hardware, gear inspection and lubrication, limit switch calibration, force settings, and a full cycle test under real gate weight. The written quote we give you before starting covers all of that. No surprise line items for “adjustments” or “calibration” after the fact. If we find a control board issue during the motor swap, we stop and call you with a new, written price. You approve it or we don’t do it. Call (213) 322-1415 for a free estimate on your Linear motor replacement.
Yes. Calder Gate Repair trains across nine major gate opener brands including Linear, LiftMaster, Mighty Mule, and Ghost Controls, plus FAAC, BFT, Viking, DoorKing, and Elite. If you’re not sure which brand your motor is, text us a photo of the operator box and the motor tag. We’ll identify it and give you a parts-and-labor price range before we ever schedule the truck. Call (213) 322-1415. Tell me what it’s doing wrong and I’ll tell you what it actually costs to fix it, before I pick up a tool.
Why Los Angeles Homeowners Call Calder Gate Repair For Linear Motor Replacement
Nico Alvarez started Calder Gate Repair after years of gate and access-control work across the greater LA area, from Boyle Heights to the Valley, and he’s the one who set our working rules: quote before touching anything, show up when we say we’ll show up, and stand behind the work in writing. That’s how we operate on every Linear motor replacement in Los Angeles.
We’re part of the Relay Home Co. family, founded in 2009, and we operate under The Relay Visibility Guarantee. When you book with us, you get a real, trackable arrival time from a text alert, a background-checked technician in uniform, before-and-after photos of the work, and a digital invoice you can pay from your phone. We answer calls live 24/7. No voicemail maze, no “someone will call you back.” A human picks up the phone.
If your Linear gate motor is humming without moving, tripping breakers, or just not opening anymore, don’t ignore it. A dead gate motor means a gate that either won’t secure your property or won’t let you leave. Call (213) 322-1415 today. We’ll diagnose it over the phone, quote the real price, and if needed, send a tech with the right part on board. Written price first. 365-Day Done Right Promise. Free second visit if the repair fails.
Written by Nico Alvarez, Owner, Calder Gate Repair Los Angeles at Calder Gate Repair Los Angeles, serving Los Angeles and nearby areas.