FAAC Gate Motor Replacement Nationwide

FAAC Gate Motor Replacement: The Alpharetta Owner’s Guide

FAAC gate motor replacement in Alpharetta typically runs $890-$1,450 installed for a residential swing or slide operator, depending on the model series and whether the mounting bracket and control board need replacement too. We stock FAAC-compatible motors and control components on our trucks, and most replacements in Alpharetta are completed same-day once the model is confirmed. Most owners discover the motor has failed when the gate stops mid-travel, reverses for no reason, or the control box starts clicking without the arm moving.

Call (678) 679-2152

Which FAAC Models This Applies To

FAAC operators carry their model number on a metal label riveted to the motor housing, usually facing the driveway side. The 400 series (412, 414, 422) covers light residential swing gates up to about 16 feet; the 700 series (746, 844) handles heavier residential and light commercial swing gates; the 720 and 721 series are the common slide-gate operators in Alpharetta’s gated communities.

We match the replacement to the exact series because the mounting footprint, stroke length, and control-board pinout differ. A 414 arm will not bolt to a 422 bracket without drilling new holes. For the 746 and 844 series, we often see owners try to substitute a 400-series arm to save money; the torque rating is roughly half, and the gate will stall in cold weather or burn out the new motor within a season.

We source both OEM FAAC motors and quality aftermarket equivalents from HySecurity and US Automatic where the spec matches. For the 721 slide-gate series, we generally recommend OEM because the rack engagement geometry is tight, and aftermarket versions often need shimming that the original does not. We name the manufacturer on the written quote before work starts, so you know what you’re getting.

Signs Your FAAC Gate Motor Replacement Is Failing

• The motor hums but the gate does not move. This usually means the internal capacitor has failed or the worm gear inside the gearbox has stripped its teeth. The capacitor provides the initial torque to break the gate’s inertia; when it weakens, you hear the motor strain without output.
• The gate starts moving, then stops and reverses. FAAC operators use an internal amperage sensor to detect obstruction. A motor drawing excess current because of worn bearings or a binding track will trigger a false obstruction reading and send the gate backward.
• Intermittent operation, especially in morning or evening. Temperature swings in Alpharetta, particularly the 30-degree jumps between March mornings and afternoons, expand and contract solder joints on the control board. A motor that runs fine at noon and fails at 7 a.m. often has a cracked solder joint or failing relay, not a dead motor, but the symptom looks identical to the owner.
• The control box LED flashes a fault code, but the gate still moves manually. FAAC boards flash in patterns: two flashes for motor overcurrent, three for limit-switch error, four for safety-loop interruption. A motor with shorted windings will throw a two-flash code even if the gate moves freely by hand.
• Visible oil or grease leaking from the gearbox housing. FAAC gearboxes are sealed units. Leakage means the seal has failed, contamination has entered, and the gear mesh is grinding itself apart. Continuing to run it will send metal debris through the system and ruin the control board.

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Replacement Cost & What’s Included

The total installed price depends on three things: whether the existing mounting bracket is square and reusable, whether the control board was damaged by the failing motor, and whether the gate itself needs adjustment to reduce the load on the new operator. We measure the gate’s swing or slide force before quoting; a gate that drags on the pavement will kill a new motor in months.

Under Clause 1 of The Haven Standard, you receive a written price before we pick up a tool. The price includes the motor, labor, testing of all safety devices, and a documented photo record of the installation. The 365-Day Done Right Promise covers the full installation, parts and labor, with no expiration within that window.

DIY or Call Us?

There is one safe check an owner can make: verify that the gate moves freely by hand with the operator disconnected. If it binds, the problem is mechanical, not the motor. Beyond that, FAAC operators run on 120V household power, and the capacitor inside the housing holds a charge even when unplugged. We have seen homeowners discharge capacitors through screwdrivers with enough force to weld the blade to the terminal. The spring-assist mechanisms on 700-series arms are under tension; removing the wrong bolt can launch a metal component.

We do not recommend DIY replacement. The limit-switch settings require a meter and a specific sequence; set wrong, the gate will close on a vehicle or fail to latch, creating liability the homeowner may not have considered. When we install, we set the force limits with a calibrated gauge, test the entrapment protection, and leave you the readings in writing. Name what you found. Name what it costs. Name what you left behind.

Call (678) 679-2152 for a free estimate. A live person answers, and we can usually confirm your model from a photo texted to the same number.

FAQs