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Linear Gate Motor Replacement: The Laguna Hills Owner’s Guide
A Linear gate motor replacement in Laguna Hills typically runs between $850 and $1,650 installed, depending on the model and whether we’re swapping the operator, the control board, or the full arm assembly. We keep the most common Linear replacement parts on our trucks, so most jobs are done in one visit. You usually find out the motor has failed the way most of our Laguna Hills customers do: the gate stops mid-swing one morning, or it groans and shudders for a week, and then it simply refuses to move at all.

If that’s where you are, this page will tell you exactly what to expect. Which Linear models we work on, what fails first on these motors in South Orange County’s salt air and sun, what a fair installed price looks like, and whether any part of this job is safe to touch yourself. Victor Salinas has been replacing and repairing these units from Nellie Gail Ranch to the Aliso Creek area for more than two decades, and he will tell you plainly when a motor can be saved and when it is done.
Which Linear Models This Applies To
If your gate operator says Linear on it, we will likely have the right replacement part. The most common Linear residential models in Laguna Hills are the LDO series (LDO50, LDO33) and the older LS series (LS100, LS1000, LS2000), which show up on everything from 1970s estate gates to newer swing and slide installations. The key thing to know before you order anything anywhere: Linear changes its control board pin layouts between revisions, often without changing the model number on the housing. A board that fits an LS1000 from 2010 will not necessarily plug into an LS1000 from 2018. We match parts by the board revision printed on the existing control board and the serial plate on the motor housing, not just by the model name on the cover.
On the parts side, a Linear-branded OEM board typically runs $220 to $350 for the part alone, while a quality aftermarket board that is UL-listed and built to the same spec runs $140 to $220. For a 20-year-old motor, aftermarket often makes more sense: the part is new, the warranty is the same, and the factory board will only outlive the rest of the operator by a couple of years anyway. We will show you both options and give you our honest read. We are an independent gate service company, not a Linear dealer, so we are free to recommend the part that actually makes sense for your situation.
Signs Your Linear Gate Motor Replacement Is Failing
Here is what we see on the driveways around Laguna Hills, in the order owners usually notice it:
- The gate starts mid-travel and then stops dead. This is the most common failure pattern on Linear swing arms and slide operators. It almost always points to limit switch drift or a failing capacitor in the motor itself, not a problem with the gate. The motor tries to finish the cycle, loses torque, and cuts out.
- The operator hums but nothing moves for 5 to 12 seconds. On the older Linear LS-series, that hum is the start capacitor failing. It will get worse in heat, which means Laguna Hills summers call it out fast. The capacitor is a $45 to $80 part that saves you a full motor swap, but only if you catch it before the windings cook.
- The gate opens fine but reverses or stalls when closing. We see this more in the south end of Laguna Hills, where driveways slope. The operator’s torque limiter or obstruction sensor is reading the grade as a blockage. It is usually not the board, but people replace the board first and wonder why nothing changed.
- The keypad or remote works only occasionally, and the range shrinks over time. This is rarely the motor itself. It is the receiver board or antenna inside the Linear control housing, and it fails gradually. This is one of the few Linear problems you can sometimes fix without replacing the motor or the board.
- The gate still works, but the motor runs noticeably hot or smells warm after a cycle. When a Linear motor starts running hot, the bearings are going. Laguna Hills dust gets into the housing seals, especially on slide operators mounted low to the ground. A bearing kit and seal replacement is a fraction of a full motor.
Replacement Cost & What’s Included
Here is the honest picture for Laguna Hills, before anything is ordered or unbolted:
| Scope of Work | Typical Installed Price |
|---|---|
| Start capacitor replacement (LDO or LS series) | $120 - $260 |
| Receiver board or antenna replacement | $180 - $340 |
| Full control board replacement (aftermarket) | $380 - $560 |
| Full control board replacement (Linear OEM) | $480 - $720 |
| Complete swing arm operator replacement (motor, arm, board) | $1,100 - $1,800 |
| Complete slide operator replacement | $1,600 - $2,300 |
Every one of those numbers includes parts, labor, and testing the full gate cycle at the end. You get one written price before a single bolt is turned, and the price you agree to is the price on the bill. Every replacement we install is covered by our 90-Day Done Right Promise, in writing: if it is not right, we come back and make it right, no paperwork and no arguing. That is our standard on every job, and it has been since 1984.

DIY or Call Us?
Here is the honest split. There are a handful of things you can safely check on your own: is the manual release lever engaged, are the photo eyes clean and aligned, is there a branch or debris in the gate track. Those account for maybe one in eight calls we take, and checking them costs nothing.
Beyond that, a Linear gate motor replacement is not a handyman job, and I will say it plainly: the capacitors in these operators hold a charge even with the power cut, and the gate itself is a half-ton of moving steel under spring tension. A charged capacitor can put you on the ground. A gate that shifts while the operator is unbolted can do worse. If you have to ask whether the board pinout matches or whether the capacitor is discharged, that is the sign to make the call to a trained gate technician instead. We have the right tools, the right boards for the right model years, and the job gets done in one visit. Call (213) 587-4828 and a real person will answer, any hour, any day.
FAQs
A properly installed Linear operator in Laguna Hills will typically run 12 to 18 years before the motor itself wears out, with capacitor and board failures happening in between. The coastal air and summer heat shorten that on unsealed mountings and south-facing gates that sit in full sun. If your motor is past 15 years and failing, replacement usually beats another board swap.
In more than half of cases, yes. Capacitors, receiver boards, limit switches, and bearings are all replaceable at a fraction of a full motor. The only time we recommend a full replacement is when the motor windings are burned, the gearbox is stripped, or the unit is old enough that a board repair is throwing money at a motor that will not see another summer. Call (213) 587-4828 and we will tell you which camp yours is in, free.
Most single-operator replacements in Laguna Hills take two to three hours on site. A full slide operator replacement on a long driveway can run half a day. We arrive with the matched board, motor, and hardware for your model on the truck, which is why we finish most jobs in one visit.
We keep the most common Linear LDO and LS-series capacitors, boards, receiver modules, and complete swing arms on our service trucks. Start capacitors, receiver boards, and the current-model control boards are stocked. Older LS-series-specific boards may be ordered and arrive within one to three days. We will let you know before you commit to anything.
When the gate needs a new linear motor and you want this to be the last phone call you make about it, call Ironworks Gate Co. at (213) 587-4828. We will talk through what your gate is doing, what it will take to fix it, and what the honest price is. No pressure. Just the right repair, done right, with our 90-day written guarantee on every job. Good metal lasts. So does good work.
Written by Victor Salinas, Owner at Ironworks Gate Co., serving Laguna Hills and nearby areas.
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