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AfterDoorKing Gate Motor Replacement: The Fort Worth Owner’s Guide
We stock and install DoorKing-compatible gate motors throughout Fort Worth, with most single-motor replacements running $950 to $1,700 installed depending on your swing gate size and whether the controller board and limit switches get replaced at the same time. Same-day service is available when we have your motor on the truck, and we’ll tell you over the phone whether we do. Most folks discover their DoorKing motor has failed the hard way: the gate groans at half speed for a week, then stops mid-swing one morning and won’t budge. The bad news is that a dead motor doesn’t heal itself. The good news is this is a repair we’ve handled hundreds of times, and it’s usually done in an afternoon.
DoorKing’s actual brand name is DoorKing, but around DFW you’ll hear it called “Door King” or “DKS” on old invoices. Hal Gatewood’s crew has been pulling these motors out of Fort Worth gates since long before the company updated its logo, and 29 years in this trade means we know which models work and which ones were a bad batch from the start.
Which DoorKing Models This Applies To
We replace swing gate motors on the DoorKing 6000, 6002, 6003, 6100, 6300, 6500, and 9000 series, plus the older 1601, 1602, and 1603 machines still bolted to posts all over Tarrant County. The quickest way to identify yours is to open the top cover and look at the silver data plate riveted to the chassis. You’ll see a model number stamped there, usually with a serial that starts with a two-digit year code.
The gotcha that trips up a lot of Fort Worth homeowners is this: a 6000-series motor won’t just drop into a 9000-series chassis even though they’ll bolt to the same pad. The arm stroke lengths are different, and the controller expects different RPM ranges. We had a customer in Benbrook last spring who bought a used motor off an online auction, paid a handyman to swap it, and then spent three weeks fighting a gate that opened 80 percent and stopped. By the time he called us, the limit switches were fried from repeated over-travel. That’s a $340 mistake on a part he thought he saved money on.
DoorKing offers OEM replacement motors, and we install them when the customer prefers factory. But we also keep a relationship with two aftermarket suppliers whose motors meet or beat DoorKing spec for the 6000 and 6500 series at roughly 60 percent of OEM price. We’ll quote both, explain the difference honestly, and let you choose. We are an independent service company, not a DoorKing dealer, so we have no reason to push one over the other except what has held up in Texas heat.
Signs Your DoorKing Gate Motor Replacement Is Failing
- Sluggish start, especially when the temperature is below 50. Heat is the usual killer in Fort Worth, but cold mornings reveal motors with weak capacitors. If it takes two or three tries before the gate moves, the capacitor pack is going, and the motor isn’t far behind.
- Humming but no movement. You hear the motor trying, the chain isn’t moving, and after ten seconds a thermal overload clicks. That’s usually a seized gearbox or a broken drive chain coupling. We see this on DoorKing 6300 models that have never had their gear oil changed.
- Gate moves in jerks, stops briefly, then continues. This points to the motor drawing unequal current across its windings. It runs fine for six feet, stalls for a beat, then jerks forward. That’s a failing motor, not a hinge problem.
- The gate reverses for no reason halfway through its arc. If the safety edges and photo eyes test fine, the motor’s torque system has begun over-reading resistance. It thinks it hit an obstacle. Our diagnostic sequence rules out the sensors first, then reads the motor draw with an inline meter.
- Scorched smell from the control box after heavy use. The circuit board runs hotter when the motor demands more power than it should. That smell is your motor killing your board slowly.
One thing worth saying plainly: a weak DoorKing motor is a security hole. A gate that stalls halfway open is an invitation. If any of these signs sound familiar, call us at (817) 241-4067 and we’ll get eyes on it before the weekend.
Replacement Cost & What’s Included
In Fort Worth, a DoorKing motor replacement typically lands between $950 and $1,700, and here is what drives that spread:
- Motor only, OEM or aftermarket: $420 to $780, depending on series. Your 9000-series motors sit at the high end.
- Labor and setup: $250 to $420. That covers removing the old motor, mounting the new one, setting arm stroke, adjusting limit switches, and cycling the gate 15 to 20 times to verify timing and torque.
- Parts we usually replace at the same time: drive chain coupling ($18 to $40), capacitor pack ($35 to $75), and limit switch set ($22 to $45) if they show wear.
- Controller board replacement, if the old motor took it out: $225 to $450. This is the number that moves most estimates from “around a thousand” to “around fifteen hundred.”
Every estimate we hand a Fort Worth customer is a firm number agreed to before we touch a bolt. If we open the box and find the board is dead too, we call you with the price before replacing anything. The 90-Day Done Right Promise covers the motor swap, and the motor itself gets the manufacturer’s warranty (one to five years, depending on which unit you choose).
DIY or Call Us?
You can safely check a few things on your own. Confirm the breaker hasn’t tripped and the disconnect switch isn’t off. Look for a tripped GFCI if your gate plugs into an outlet. If the gate has a manual release lever, you can pull it and swing the gate by hand to prove the gate itself isn’t bound up. These three checks take five minutes and they’ll save you a service call if one of them is the problem.
After that, I’d step away from the toolbox. A DoorKing gate motor runs on 120V or 240V and contains a large capacitor that can discharge into you even with the power cut. We’ve seen well-meaning homeowners get knocked off a ladder by a charged cap, and we’ve seen handymen wire a new motor backward and smoke a perfectly good board. This is not the place to practice. If you’re in Fort Worth or anywhere in Tarrant County, call (817) 241-4067 and we’ll bring the motor, the meters, and the know-how to get it right the first time and never leave you standing in your driveway wondering if we’re coming back.
FAQs
In Fort Worth’s climate, expect 8 to 14 years from a DoorKing motor, with heat being the primary killer of the 6000-series capacitor packs. A gate motor in direct afternoon sun on a concrete pad in a place like White Settlement will run hotter and fail sooner than one under a shady overhang. If your gate sees heavy daily cycling (say, 10+ open-close cycles because of a business or a busy driveway), cut that lifespan by roughly a third. If your motor is older than 10 years and showing any of the warning signs above, a dollar spent checking it now is cheaper than a motor and a board later. Call us at (817) 241-4067 and we’ll give you an honest read on what’s left in yours.
Sometimes, yes, though it depends on the failure. We can replace brushes, capacitors, and the coupling on many DoorKing models, and when the problem is a seized gearbox from old grease, we’ve had luck freeing and repacking them on the 6300 series. But when windings short or the armature is burned, the repair cost approaches 70 to 80 percent of the cost of a new motor with a warranty, and we’ll tell you that straight. Our shop philosophy is simple: fix what makes sense to fix, replace what doesn’t. Hal started this company in 2001 because he was tired of watching Fort Worth homeowners get told to replace things that just needed a good mechanic. That hasn’t changed.
Most DoorKing motor swaps take us 2 to 3 hours on site. That includes pulling the old motor, mounting the new one, running power checks, setting limits, and testing the safety edges in both directions. If the controller board needs replacing too, add roughly 45 minutes. If we have your motor on the truck, the whole thing is done in one visit. We’ll tell you over the phone what’s in stock before we roll out.
We keep DoorKing 6000, 6100, and 6500 motors on the truck, plus the most common capacitors, couplings, and limit switches. 9000-series motors and some of the older 1600-series units are usually a 1 to 3 day order through our suppliers, and we’ll tell you the timing before we start any work. If you’re without a functioning gate, we can often wire in a temporary manual operation or a loaner motor on a case-by-case basis while your motor arrives. The best move is a quick phone call to (817) 241-4067 so we know exactly what model you have.
Written by Hal Gatewood, Owner, Gatewood Fence & Gate at Gatewood Fence & Gate, serving Fort Worth and nearby areas.