Linear Gate Motor Replacement Nationwide | Gatewood Fence & Gate

Linear Gate Motor Replacement: The West Hollywood Owner’s Guide

If your Linear gate motor has quit or is grinding its last cycle, here’s the short version: we stock Linear-compatible replacement motors on the truck, and most West Hollywood swaps run between $850 and $1,400 installed, with same-day replacement available when we can match the arm, board, and stroke to what’s already welded to your gate. You’ll know it’s the motor and not something else when you hear hum with no movement, the arm jerks a few inches then stops, or the gate worked fine for ten years and now trips the breaker every time it tries to open. A failed motor rarely surprises an owner who’s been listening to it complain for a month.

Call (323) 677-4063

Tell me what it’s doing wrong and I’ll tell you what it actually needs – give me your number and I’ll call you back myself.

Which Linear Models This Applies To

Linear built a lot of different operators over the years, and the replacement has to match more than the brand name. The big divide in West Hollywood installs is between the LDO series swing-arm operators (LDO50, LDO75) and the LS sliding-gate operators, plus the older M-series 24V units you still find on hillside properties up above Sunset. Each one runs a different motor assembly, and yes, we’ve had calls where somebody bolted an LDO75 motor onto an LDO50 arm and got about 6 months out of it before the shaft bearings gave up.

Here’s the part most people don’t know: the motor isn’t the only thing that decides compatibility. Linear uses a feedback system tied to the exact arm ratio and the board’s RPM limits. Swap the motor for a close-but-not-exact generic, and the board thinks the gate is either opening too slow (and goes to sleep) or too fast (and faults every afternoon when the sun hits the photo-eye). We spec OEM Linear motors when they’re available and honest aftermarket equivalents when the OEM parts are backordered or priced like they’re made of gold. The aftermarket units we use are tested to hold rpm within 15 of what the Linear board expects, and we stand behind that with the same 90-Day Done Right Promise as everything else.

Compatibility gotcha: the older Linear M3 and M5 motors run on 24V DC, while most LDO series units are 12V. You can’t swap those, and forcing 24V into a 12V board blows the capacitor bank on the first open cycle. If the label’s been sun-baked off the motor, the board will have “LDO” or “M” printed in the top-left corner, and the motor body will have a stamp near the brushes. We match it twice before we quote it.

Signs Your Linear Gate Motor Replacement Is Failing

• Hum with no movement. That’s the motor windings trying to turn but the armature’s seized or the gear stack has stripped. Once you hear the hum with no motion, the demand on the board doubles, and the board is generally the next thing to fail if it keeps running.
• Gate starts, jerks, stops, then reverses. The feedback signal from the motor to the board is dropping out, usually from worn brushes inside the motor or a encoder failure on the arm. In West Hollywood, leaf litter and redwood slash build up on slide gates and increase travel resistance enough to mimic a motor failure, so we check track resistance before condemning the motor.
• Opener won’t hold position or requires multiple button presses. The holding current rises as brushes wear, and the board compensates for a while before it gives up. When you press the remote and the gate twitches but won’t commit, that’s classic early motor failure.
• AC gate operator trips breaker on start-up. On older 120V Linear units, the start capacitor and the motor windings are fighting, and that inrush current is what’s tripping the panel. Left alone, this cooks the board over a dozen or so cycles.
• Any burning smell near the operator box. That’s not a warning light; that’s a signal to kill power at the breaker and stop using the gate. Electrical insulation inside the motor breaks down in high heat and humidity, and a burned Linear motor can take a board that would’ve survived a mechanical failure if you’d called a week sooner.

Replacement Cost & What’s Included

For West Hollywood, figure $850 to $1,400 installed for most Linear gate motor replacements, depending on whether it’s an LDO arm operator or an LS slider. The motor itself runs $350 to $600, and labor is typically 2 to 4 hours including removal, mounting, alignment, board calibration, and a half-dozen full cycles to confirm it holds open without drift. On a direct same-model swap, we’re usually done inside a morning. On a retro fit where the arm geometry changed between Linear generations, that’s the $1,400 side of the range, because we’re re-welding the mounting plate and resetting the travel limits from scratch.

Every price is agreed before we start, and the number we quote is the number on the ticket. No trip charge inside the county, and if you’ve got a written estimate from another shop, bring it in for a free second opinion. $40 off any repair over $200, and a permanent 10% discount for seniors and veterans. The replacement motor itself gets our 90-Day Done Right Promise in writing, which means if it doesn’t cycle clean in the first three months, one call brings Hal back, no runaround, no ‘well it seems fine to us.’

DIY or Call Us?

Alright, flat truth from a guy who’s pulled up to a lot of “fixed” gates: a Linear motor replacement isn’t like changing a car battery. These motors are wired to a 12V or 24V DC board that doesn’t have a lot of room for guesswork, and the arm is under spring tension on swing gates. If you pull the wrong pin or loosen the wrong bracket, that arm will want to move on its own, and you can lose a finger or a face plate before you even touch a wire. The high-tension parts of this job are not something to work out from a YouTube video while your neighbor holds the gate. That’s not scare talk; that’s twenty-nine years of field calls.

What you can safely do: check your breaker, confirm the opener’s getting power at the outlet, and clear any debris that’s obviously blocking the track or hinge path. If those are clean and the opener still won’t move, the problem’s inside the motor or the board, and that’s the moment to stop and call (323) 677-4063. We’ll tell you over the phone whether it sounds like a motor or a board, and if we send someone out it’s a live person, no voicemail, no call screen, no one who’s never touched a Linear arm before their first day.

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