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Linear Gate Motor & Opener in Pasadena: What to Know First
We provide independent Linear gate motor and opener service in Pasadena, from motor replacement and slide motor repair to battery backup installation and intercom integration. Most Linear jobs are diagnosed and repaired the same day we arrive, and you’ll get a written price before any work starts, no exceptions. Typical Linear motor repairs in Pasadena run $240 to $690 depending on whether we’re replacing a control board, limit switch assembly, or the full operator itself.
This page is for Pasadena homeowners who already have a Linear operator on the driveway and want to know what’s wrong, what it’ll cost, and whether it’s worth fixing. If that’s you, call (626) 624-4196 and a live person answers, any hour.
How Linear Products Fail - and How We Fix Them
Linear gate operators are common across Pasadena because they shipped with a lot of residential installations in the 2000s and early 2010s. The brand has its own failure patterns, distinct from LiftMaster or Mighty Mule. Here’s what we actually see, week to week:
- APeX series limit switch drift. The Linear APeX (models like the AL3GD and AL4GD) uses magnetic limit switches that can drift out of calibration after a few years of thermal cycling. In Pasadena, where summer heat hits 100+ and winter nights drop into the 40s, that swing is enough to make the gate stop six inches short or overshoot the close position and reverse. Fix: recalibrate the limit switch and lock the new position, then photograph the reading so the next adjustment isn’t a guess.
- LDCO series master/second board failures. The Linear LDCO803 and LDCO801 swing-ram operators use a pair of control boards with a ribbon cable between them. When that ribbon cable corrodes, usually on Pasadena hillside properties where morning marine layer lingers, the board loses communication intermittently. Symptom: the gate opens fine five times, then does nothing on the sixth. Fix: inspect the cable, reseat it, and if there’s visible oxidation, replace it and re-flash the board settings.
- G series chain-drive slide gate sprocket wear. The Linear SLR series and G-series slide operators have a steel sprocket driving a chain along the gate rail. Over eight to ten years, especially on heavier driveway gates in Pasadena’s arroyo-side neighborhoods, the sprocket teeth round off. The motor runs, but the gate slips. Fix: replace the sprocket, inspect the chain for stretch, and reset the torque limiter to spec. We document the part number on the work order.
- Megacode receiver desync after power flickers. Linear Megacode transmitters (the 2-channel and 4-channel remotes) can drop their rolling-code sync after a power surge or a blown transformer. Pasadena’s summer brownouts cause a small but steady stream of these. Fix: re-learn the transmitter, verify the code hop, and if the transformer is original, we often recommend replacing it before it takes the control board with it.
- Failed gear reduction on the 3/4 HP swing ram. The Linear SWR and SWRi swing gate rams use a reduction gear inside the ram body. When the grease dries out, typically after six or seven years in direct Pasadena sun, the gear binds and the motor hums but doesn’t move the gate. Fix: sometimes it’s a rebuild with fresh grease and a new seal; more often the gear is already scored and the honest call is a replacement ram. We’ll show you the damage before you pay for anything.
Our Linear Gate Motor & Opener Process

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Phone call. You call (626) 624-4196. A live person answers and asks what the gate is doing, or not doing. We schedule the visit around your day, not ours.
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On-site diagnosis. The technician arrives, names the operator model off the serial plate, and tests the operator function. We check limit switch position, force settings, photo-eye alignment, and incoming voltage before touching anything.
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Written price, before work starts. Under Clause 1 of The Haven Standard, every job gets a written price before a single bolt turns. No open-ended hourly billing. You know the number and you approve it first.
- 4
The repair or replacement. We fit the correct part. On Linear operators, that often means OEM boards and limit switches where availability allows, and quality aftermarket alternatives when the OEM part is discontinued or backordered. If aftermarket is used, we tell you and put it on the work order.
- 5
Testing and documentation. We run the operator through a full cycle, then a partial-open reversal test on the photo-eye. We photograph the finished job, the limit switch readings, and the part number installed. That record is left with you and filed in our system.
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Warranty in writing. Every Linear repair is covered by our 365-Day Done Right Promise. If something’s not right within the year, we come back and make it right, no fee, no argument.
Before
AfterWhat Linear Gate Motor & Opener Costs in Pasadena
Here’s what to expect, in real numbers:
- Limit switch recalibration or photo-eye realignment: $140 to $240. Most common fix, usually done in under an hour.
- Control board replacement (APeX, LDCO, Megacode receiver board): $280 to $520 depending on the board and whether OEM stock is available.
- Swing ram replacement (SWR/SWRi, 3/4 HP or 1 HP): $430 to $790. Labor runs about two to three hours, including setting limits and force.
- Full slide gate operator replacement (SLR/G-series): $900 to $1,600. Includes the operator, chain or rack, sprocket, and full setup. Price moves with gate weight and whether concrete work is needed at the motor pad.
- Battery backup installation: $240 to $480, depending on the operator’s draw and whether a second battery tray is needed.
What moves the price is parts availability, operator age, and whether the gate itself is binding, which adds mechanical work on top of the motor repair. You’ll know the full number before we start, in writing. That’s the whole point of the way we work. Call (626) 624-4196 and we’ll set up a free estimate.
Why Pasadena Homeowners Call Vance Gate Repair Pasadena for Linear Work

We don’t steer you toward replacing your Linear operator just because it’s older; we fix what’s fixable and tell you when a repair no longer makes financial sense. Our technicians know Linear’s wiring layouts and the failure patterns of the APeX, LDCO, SWR, and SLR lines, which means diagnosis is generally faster and the fix is usually one visit. It also helps that we service nine major gate-automation brands, including LiftMaster, Mighty Mule, Ghost Controls, and DoorKing. If you have a mixed setup, a Linear ram on one gate and a DoorKing slide on another, we handle both on the same visit.
Every visitor to your home is a background-checked, uniformed technician, and you get their name and photo before arrival. We leave the work order with the part number, the settings, and the photos. The next tech who opens that operator won’t be guessing. That’s what we mean by leaving a documented record. Adrian Vance started this company in 2014 on that principle, and it’s how we still run every residential gate job in Pasadena.
FAQs
No. We are an independent Linear service provider. We work on Linear operators every week and stock or order parts for the APeX, LDCO, SWR, and SLR lines, but we’re not manufacturer-authorized and we won’t imply otherwise. What we will tell you is that we fix them correctly and stand behind the work for 365 days.
In most cases, yes. We run same-day dispatch for gate motor failures across Pasadena, including neighborhoods north of the 210 and down toward the Arroyo. Call (626) 624-4196 and we’ll give you a straight answer on the time window before you hang up.
We prefer OEM Linear parts when they’re in stock and reasonably priced, especially for control boards and safety devices where compatibility matters. When an OEM part has been discontinued or is on a two-month backorder, we source quality aftermarket equivalents and we tell you exactly what we’re installing and why. The part number goes on your work order either way.
Most Linear operator repairs run between $240 and $690. A limit switch recalibration is on the low end, a swing ram or control board replacement on the high end. Full slide operator replacements run $900 to $1,600. You’ll get the exact number in writing before we start. Call (626) 624-4196 and we’ll give you a free estimate based on what your operator is actually doing.
Yes. We install battery backup systems on Linear APeX, LDCO, and SWR operators. The cost depends on the operator’s power draw and whether the existing transformer can support a charging circuit, which we check during the visit. A backup keeps your gate running during the rolling outages that hit parts of Pasadena during fire season, and it’s a reasonable addition for any driveway gate that doubles as a security feature.
Name what you found. Name what it costs. Leave the gate working.
For a free estimate on Linear gate motor and opener service in Pasadena, call (626) 624-4196. A live person answers, 24 hours a day, seven days a week. Written price before any work starts.
Written by Adrian Vance, Owner, Vance Gate Repair Pasadena at Vance Gate Repair Pasadena, serving Pasadena and nearby areas.




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