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Linear Gate Motor Replacement: The Keller Owner’s Guide
If your Linear gate opener has stopped responding, grinds when it runs, or trips its breaker every time you press the button, the motor is likely the culprit. A Linear gate motor replacement in Keller typically runs $750 to $1,650 installed, depending on your model and whether we’re swapping just the motor assembly or the full operator arm. We stock Linear-compatible motors on our trucks and can have most Keller driveways working again in a single visit, usually same-day when we diagnose it over the phone. Most homeowners call us after the gate works fine for years, then one morning it hums without moving, or moves six inches and stops. That’s a motor winding or gear failure, not a programming issue, and it means the part has reached the end of its service life.
Which Linear Models This Applies To
Linear operators are common across Keller, particularly the LDO, LSQ, and older APeX series. The motor assembly isn’t universal across these lines, and that’s the first compatibility gotcha we see: an LSQ-series motor will not drop into an LDO-series housing without an adapter plate, and even then the travel limits won’t line up correctly. The surest way to identify what you need is the silver label on the operator arm or the control board cover. It will list a model number like LDO50, LSQ75, or APeX400, plus a date code we use to confirm the correct gear ratio. If the label is faded or missing, we measure the arm length and count the gear teeth on the output shaft. That takes about five minutes and removes all guesswork. On the OEM-versus-aftermarket question for Linear specifically: we install Linear’s OEM motor assemblies when they’re available, but for the older APeX and LDO lines, Linear has shifted production and some OEM parts now carry a 6-to-8-week wait. In those cases, we use quality aftermarket equivalents from manufacturers that build to the original voltage and torque specs, and we’ve had Keller customers running them for years without issue.
Signs Your Linear Gate Motor Replacement Is Failing
- Humming with no movement. The motor is receiving power, but the armature is stuck or the capacitor has failed. The motor is working but can’t deliver enough torque to move the gate. This is the most common failure we see in Keller, especially after summer heat degrades the capacitor.
- Gate moves a few inches, then stops and reverses. The motor’s thermal overload is tripping because windings are shorting internally. It builds heat fast, shuts itself off as designed, and works again after cooling, which is why the problem seems intermittent.
- Breaker trips every time the gate runs. A motor drawing well above its rated amperage usually means the winding insulation has broken down. For a Linear unit rated at 3 to 5 amps, a reading of 12 or more is a clear replacement signal.
- Strong electrical smell near the operator arm. The winding lacquer is burning off. That smell doesn’t go away, and running the motor longer only makes the failure more expensive to clean up afterward.
- Gate runs slow, even after track and roller adjustments. Not a motor problem on its own, but a weakened motor can’t push through worn rollers or a binding track forever. By the time it can’t, the motor has been overworked to failure. This is why we replace the motor and correct the binding issue in the same visit.
Replacement Cost & What’s Included
A Linear gate motor replacement in Keller, installed, typically lands between $750 and $1,650. The range depends on your operator series, whether it’s a swing or slide arm, and whether we’re replacing just the motor or the full operator assembly. Here’s how it breaks down:
- Motor assembly (OEM or approved aftermarket): $350 to $900, depending on Linear series and torque rating
- Labor for motor swap, travel limit reset, and force adjustment: $250 to $450
- Full operator replacement (motor, arm, control board, wiring check): $1,200 to $1,650
- Capacitor replacement, if that’s all it is: $90 to $160 installed
We quote the price before any work begins, and the number we give on the phone is the number on the invoice unless we find something else wrong and point it out to you first. Every Linear gate motor replacement we complete in Keller is covered by our 90-Day Done Right Promise in writing. If it’s not right, we come back and make it right. No paperwork, no arguing.
DIY or Call Us?
You can safely do two things on your own: confirm power at the outlet and visually check for a tripped breaker or GFCI, and confirm the gate isn’t physically jammed against a fender post or debris. Beyond that, this is not a handyman project. A Linear gate arm holds a substantial length of heavy steel, and the motor assembly rides on a high-tension carriage. When unbolted incorrectly, that carriage and arm release stored energy fast enough to break a hand. The electrical side is just as unforgiving: a miswired motor can short the control board, and now you’re replacing a $400 motor and a $600 board instead of one part. If you’ve confirmed power and the gate moves freely by hand with the motor disengaged, call us at (254) 330-8718. Tell me what it is doing and what it is not doing, and that is usually all I need to get started.
How Long Does a Linear Gate Motor Last in Keller?
A Linear gate motor in Keller lasts 8 to 12 years on average before the windings or gear train fail. In our climate, the two killers are heat and lightning. A motor sealed inside an operator housing on a west-facing Keller driveway sits in 140-degree ambient heat every August afternoon, and capacitor failure arrives early as a result. Lightning strikes along the rural fringes of Keller smoke control boards, and a board that’s already been repaired once often fails again within a year. If your Linear unit is past year 10 and you’re seeing intermittent hums, slow travel, or breaker trips, replacing the motor now avoids a failure when guests are arriving and the gate won’t open.
Can the Motor Be Repaired Instead of Replaced?
In most cases, no, and if a repair shop tells you they can rewind a Linear motor for less, ask what they do about the gear train. These motors are sealed units on a shared shaft with the output gear. Once the windings short or the armature scores, the labor to rebuild exceeds the cost of a new assembly. The honest repair option is replacing the capacitor if that’s the failed part, which we test first, and costs under $200. If the motor itself is gone, you’ll spend less replacing it properly than nursing it through six more months of failures. Call (254) 330-8718 and we’ll test the capacitor before we recommend anything.
How Long Does the Swap Take?
Most Linear gate motor replacements in Keller are done in one visit, and the job itself takes 90 minutes to three hours. We unbolt the old assembly, mount the new motor, set the open and close travel limits for your gate’s exact span, and adjust the force so it moves the gate firmly but won’t crush anything. Then we test the safety reverse and run the gate through ten full cycles. You’ll have the gate working before we leave, not in another three days.
Do You Stock Linear Parts on the Truck?
Yes. Our trucks carry Linear-compatible motors, capacitors, control boards, and limit-switch assemblies for the LDO, LSQ, and APeX lines. We also stock parts for LiftMaster, Mighty Mule, Ghost Controls, FAAC, BFT, Viking, DoorKing, and Elite, so if your Linear unit turns out to be the wrong diagnosis, or a second opener needs attention while we’re there, the part is likely already on site. If we need a specific assembly we don’t carry, we order it the same day and return to install it when it arrives, keeping you informed the whole way.
Call Ironworks Gate Co. for Linear Gate Motor Replacement in Keller
If your Linear opener is humming without moving, tripping breakers, or quitting halfway through the cycle, call (254) 330-8718. A live person answers, 24 hours a day, 7 days a week. We’ll ask a few questions, give you a straight answer about what’s likely wrong, and schedule the repair. We’ve been serving Keller and the surrounding communities for over 42 years, and we work the way Victor Salinas learned growing up around Bear Creek Park: do the job right, stand behind it, and treat every driveway like it’s your own.
Written by Victor Salinas, Owner & Gate Repair Technician, Ironworks Gate Co. at Ironworks Gate Co., serving Keller and nearby areas.
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