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BFT Gate Motor Replacement: The Alpharetta Owner’s Guide
A BFT gate motor replacement in Alpharetta typically runs $890-$1,650 installed, depending on whether you need a swing-arm or sliding-gearbox unit and if the existing mounting bracket is still square. We stock common BFT models on our trucks and can usually complete the swap same-day if the gate is accessible and power is live at the pedestal. Most Alpharetta owners realize the motor has failed when the gate stops mid-travel, reverses for no reason, or clicks without moving - especially after a heavy rain or during the first cold snap in November.
Which BFT Models This Applies To
BFT organizes its residential and light-commercial gate motors into clear series lines, and the part you need depends on which label is on the housing. The Ares and Phobos swing-gate operators are the ones we see most often in Alpharetta’s gated communities - the Ares handles lighter residential swing gates up to roughly 16 feet and 1,100 pounds, while the Phobos line covers heavier residential and small commercial swing applications. For sliding gates, the Deimos and ICARO gearboxes are common; the Deimos BT series in particular shows up on the long driveway gates off Windward Parkway and near Avalon, where the gate mass and daily cycle count are higher.
To identify your unit, look for the white BFT label on the motor housing - the model number, serial prefix, and production date code are all there. The mounting footprint matters: a Phobos BT A40 does not bolt to the same bracket as a Phobos AC A50, and trying to force the match cracks the casting. We carry both OEM BFT motors and quality aftermarket equivalents from HySecurity and US Automatic where the specs align. The aftermarket route saves roughly $180-$340 on parts, but we only use units that carry the same IP rating and duty-cycle certification - Alpharetta’s summer thunderstorms and occasional freeze-thaw cycling punish anything less.
Signs Your BFT Gate Motor Replacement Is Failing

- The gate stops at the same point every time. This usually means the limit switch inside the BFT control board is failing to register position, or the potentiometer has drifted. In Alpharetta, we see this most on gates that run 8-12 cycles daily - the wear adds up around year seven or eight.
- You hear the motor hum but the gate does not move. The capacitor may be weak, or the internal worm gear has stripped its brass insert. BFT uses a sacrificial brass gear to protect the steel worm - it’s designed to fail first, but once it goes, the motor spins free.
- The gate reverses immediately after starting to close. This is often misdiagnosed as a photo-eye problem. If the BFT motor is drawing excess amperage due to internal bearing seizure, the control board interprets the load spike as an obstruction and reverses the gate.
- Erratic movement or partial opening only. Water intrusion into the BFT housing corrodes the encoder disc or the terminal block. We’ve pulled motors from Alpharetta properties where the drain hole was blocked by leaf debris - the housing held water for months.
- The remote works intermittently but the motor never responds. Before blaming the receiver, check whether the BFT motor’s internal thermal overload has tripped. Repeated overheating means the windings are degrading; replacement is the only fix.
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AfterReplacement Cost & What’s Included
| Component | Typical Range in Alpharetta |
|---|---|
| BFT swing-arm motor (Ares/Phobos), installed | $890 - $1,280 |
| BFT sliding gearbox (Deimos/ICARO), installed | $1,120 - $1,650 |
| Mounting bracket replacement (if bent/cracked) | $140 - $280 |
| Control board replacement (if fried by surge) | $340 - $520 |
| Aftermarket equivalent motor, where applicable | Subtract $180 - $340 from above |
What drives the range: the motor series, whether the existing 120V power run and conduit are intact, and if the gate itself is properly balanced. A dragging gate will destroy a new motor in two seasons. Under Haven Standard Clause 1, we hand you a written price before any work starts - no call-for-a-quote runaround, no invoice that exceeds what you approved. The price includes removal, disposal of the failed unit, installation, limit-switch programming, and a full cycle test. Every replacement carries our 365-Day Done Right Promise and leaves with a documented photo record: what we found, what we set, what we installed.
DIY or Call Us?

There is one thing an owner can safely check: whether the BFT motor’s LED diagnostic display is showing a fault code. The code chart is printed inside the housing lid on most units - a steady red versus a flashing pattern tells you whether the issue is motor, board, or peripheral. Beyond that, we do not recommend owner replacement. BFT swing-arm motors weigh 35-55 pounds and mount on brackets that are under spring tension; a dropped arm can break a foot or split the housing. Sliding-gate gearboxes sit in concrete pads with live 120V terminal blocks inches from ground moisture. We have reinstalled three owner-purchased motors this year in Alpharetta alone - two were wrong series, one had stripped its bracket because the torque settings were never checked. Name what you found. Name what it costs. Name what you left behind. We will handle the rest.
FAQs
Most BFT residential motors last 8-12 years in this climate. The combination of high summer humidity and hard freeze events every other winter accelerates seal degradation and capacitor drying. Gates that cycle more than 10 times daily, common in multi-family communities near North Point Mall, tend toward the shorter end. Call (678) 679-2152 and we can assess whether yours is worth repairing or due for replacement - estimates are free.
Sometimes. A failed capacitor, a dirty encoder, or a loose terminal block is repairable in under an hour. But if the windings are burned, the gearbox housing is cracked, or the control board has taken a lightning hit, replacement is the only cost-effective path. We always diagnose first and show you the failure before quoting either route. Call (678) 679-2152 for a free second opinion if another company has already recommended replacement.
A straightforward BFT motor replacement takes 90-150 minutes on site, assuming the gate is balanced, the power is live, and the mounting bracket is sound. If we need to pour a new pad for a sliding gearbox or fabricate a bracket for a non-standard post, add half a day. We schedule the work, not guess at it - you get a written arrival window and the technician’s name and photo before dispatch.
We stock the Ares, Phobos BT, and Deimos BT series on our Alpharetta service trucks. Less common ICARO units and specialized high-cycle motors typically arrive within 24-48 hours from our distributor. If your gate is stuck open or closed, we can usually install a temporary bypass or secure the gate same-day while the correct motor is sourced. Call (678) 679-2152 to confirm availability for your model.
Ready to get your gate moving again? Call (678) 679-2152 and speak with a live person - any hour, any day. We will confirm your BFT model, quote a written price before any work starts, and dispatch a background-checked, uniformed technician with your motor already on the truck. No voicemail loops. No callback queues. Just the repair, documented and done right.
Written by Adrian Vance, Owner, Vance Gate Repair Alpharetta at Vance Gate Repair Alpharetta, serving Alpharetta and nearby areas.





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