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Get your free estimateFAAC Gate Motor Replacement: The Miami Owner’s Guide
FAAC gate motor replacement in Miami typically runs $850 to $1,600 installed, depending on your model line and whether we’re swapping just the motor or the full operator assembly. We stock FAAC-compatible motors and control boards on the truck for the 400, 412, 415, 770, 844, and S800 series, so most replacements happen same day. You’ll usually discover the problem one of two ways: the gate stops mid-swing and hums, or it won’t respond at all and the control board shows a fault light. Either way, you’re looking at a motor that’s either burnt out or mechanically seized, and in Miami’s salt air, we see both fail faster than the national average.

Key takeaways:
- Installed FAAC motor replacement: $850 – $1,600 in Miami, written quote before work starts
- We carry FAAC 400, 412, 415, 770, 844, and S800 series parts on the truck
- Salt air corrosion is a real factor here – motors fail 2 – 3 years earlier near the coast
- OEM FAAC parts are worth the premium for the 844 and S800 series; aftermarket works fine on 400-series
- Every replacement carries our 365-Day Done Right Promise in writing
Which FAAC Models This Applies To
FAAC has been building gate operators since 1965, and their naming system is honestly confusing if you don’t work on them daily. The current residential swing-gate lines are the 400, 412, and 415 series; the 770 and 844 are the slide-gate workhorses; the S800 is the newer hydraulic swing operator we’re seeing more of in Coral Gables and Pinecrest driveways. If your gate swings open on hinges, you’re in the 400/412/415 or S800 family. If it slides sideways along a track, it’s a 770 or 844.
To identify your exact motor, open the operator cover and look for the silver rating sticker. You need the model number (like “FAAC 412” or “S800H”) and the serial number. The serial tells us the production year, which matters because FAAC changed control board connectors around 2018 – a 2016 412 motor won’t plug into a post-2018 board without an adapter harness. That’s a compatibility gotcha that causes wasted trips for less specialized techs.
One honest note: we’re an independent gate repair company, not a FAAC dealer or affiliate. That means we can install genuine FAAC parts or quality aftermarket equivalents and tell you clearly which one we’d put on our own gate. The OEM-versus-aftermarket decision comes down to series. For the 844 and S800, buy OEM FAAC. The tolerances are tight and the aftermarket motors for those lines just don’t hold up. For the 400 and 412 series, a good aftermarket motor from a US distributor gives you 90% of the lifespan at about 65% of the price.
Styles & brands we work with





Signs Your FAAC Gate Motor Replacement Is Failing
- Gate moves slower than it used to. The motor’s windings are degrading and losing torque. On a 412, you’ll notice it struggles more when the gate is halfway through its arc, where mechanical load peaks. This is the earliest warning sign and the cheapest time to act.
- The motor hums but the gate doesn’t move. Usually means the run capacitor has failed or the motor’s starting circuit is dead. On FAAC 400-series units, the capacitor is a $40 fix if caught early, but if the motor keeps humming while stalled, it burns out the windings and turns a cheap repair into a full replacement.
- The gate stops mid-travel and reverses. This is typically the force-sensing – the motor is drawing too much current and the control board trips it to prevent damage. The cause can be a failing motor or a mechanical bind in the hinge. Either way, don’t keep resetting the breaker and cycling the gate; you’re cooking the motor.
- Burning smell from the operator housing. That’s insulation breaking down on the motor windings. We’ve seen this on coastal properties in Key Biscayne where salt corrosion crept into the motor housing through a degraded seal. Once you smell it, the motor is done – the smell means the epoxy coating on the windings is carbonizing.
- The control board shows a repeating fault code, then resets, then faults again. FAAC boards log fault history, and intermittent motor faults almost always trace back to a motor drawing high amps as it degrades. We read those fault logs with a diagnostic tool before we quote anything. It tells us whether you need a motor, a board, or both.
See the difference
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After
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AfterReplacement Cost & What’s Included
Here’s what FAAC gate motor replacement actually costs in Miami, installed:
| Service | Miami Price Range |
|---|---|
| FAAC 400/412 swing motor (motor only) | $850 – $1,100 installed |
| FAAC 415 swing motor with new capacitor | $950 – $1,250 installed |
| FAAC 770 slide motor (motor only) | $1,000 – $1,350 installed |
| FAAC 844 slide operator (full assembly) | $1,400 – $1,800 installed |
| FAAC S800 hydraulic swing operator | $1,500 – $1,900 installed |
| Control board replacement (if needed) | Add $280 – $450 |
The range comes down to two things: whether we’re replacing just the motor or the full operator assembly, and whether your existing control board is compatible with a new production motor. Part of the quote always includes the motor, new seals and gaskets, mounting hardware, torque and force calibration, and a full travel-limit reset. We write the price down before we touch a single bolt. You sign it, we do the work, and the number doesn’t move. Every FAAC replacement we install carries our 365-Day Done Right Promise: if the repair fails within a year, we come back and make it right, free.

DIY or Call Us?
Here’s the straight answer. You can diagnose a FAAC motor problem safely by checking three things: the breaker, the circuit board fault light, and whether the gate moves manually with the release handle pulled. Those checks cost nothing and they help us triage on the phone.
Replacing the motor itself is a different job. These operators run on 120V or 240V, and the motor connects directly to a charged capacitor that will knock you on your back if you touch the wrong terminal – even with the breaker off. Beyond the electrical hazard, a poorly aligned motor or a mis-set torque limit will either destroy the new motor in weeks or make the gate close hard enough to hurt someone. That’s a dangerous failure for a gate guarding a home in Miami. Cole Rafferty has pulled more than one DIY-installed FAAC motor out of a housing in South Miami where somebody wired it without grounding the chassis. Know what’s broken before we touch it. Fix it once.
Call (850) 495-7564 and we’ll talk through what you’re seeing, give you an honest idea of the price, and schedule a time when a named, photo-badged technician shows up ready to work.
FAQs
A properly maintained FAAC motor lasts 8 to 12 years in Miami, but coastal properties within three miles of the water should expect 6 to 9 years because salt air eats seals and accelerates corrosion on the armature. Slider motors like the 770 typically outlast swing motors because the motor sits in a sealed housing on a concrete pad rather than on a moving gate leaf.
Some 400-series motors can have their capacitors, brushes, or bearings replaced; but if the windings are burnt or the gearbox is stripped, rebuilding costs nearly as much as a new motor and gives you no warranty on the internal parts. We’ll tell you honestly which path makes sense after we open the housing and test the motor directly. Call (850) 495-7564 and we’ll walk you through it.
Most FAAC motor replacements take 90 minutes to 2 hours on site, including calibration, limit setting, and a full open/close safety cycle test. Hydraulic S800 replacements take closer to 2 hours because they require bleeding and pressure adjustment after installation.
Yes. We carry motors and control boards for the FAAC 400, 412, 415, 770, 844, and S800 series on the truck, along with capacitors, harnesses, and limit switches. We also stock parts for LiftMaster, Mighty Mule, and Ghost Controls operators. In most Miami locations, we can complete the replacement on the first visit with no return trip needed.
Written by Cole Rafferty, Owner, Warden Gate Repair Miami at Warden Gate Repair Miami, serving Miami and nearby areas.