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FAAC Gate Motor Replacement: The Chandler Owner’s Guide
A FAAC gate motor replacement in Chandler typically runs between $890 and $2,400 installed, depending on whether you have a residential swing arm, an underground operator, or a commercial slide-gate system. We stock FAAC-compatible motors and replacement kits on our trucks, and most replacements are completed in a single visit once the model is confirmed. Call (520) 827-3159 and we’ll verify your part number over the phone, quote the full installed price in writing before we dispatch, and usually have a technician out same-day or next-day.
Most Chandler owners realize their FAAC motor is done when the gate starts moving slower in the morning cool but stalls completely by afternoon heat, or when the operator hums without engaging the arm. In the Ocotillo and Fulton Ranch areas, where we see a lot of 412 and 415 swing-gate operators from the early 2010s, the thermal overload trips more often as the motor windings degrade. That’s the point where lubrication won’t save it anymore.
Which FAAC Models This Applies To
We replace motors across the full FAAC residential and light-commercial range. The most common calls in Chandler involve the 412 and 415 swing-gate operators (the compact hydraulic arms rated for gates up to about 16 feet and 880 pounds), the S800 underground systems (buried beneath the gate hinge, popular in communities with strict HOA sightline rules), and the 746 and 844 slide-gate operators for heavier driveway and subdivision entry gates.
To identify your motor, check the silver data plate on the operator body or the underside of the underground casing. You’ll need the model number, voltage (115V or 230V), and the manufacturing date code. The date matters because FAAC changed the motor mounting pattern on 415 units manufactured after 2016; an older replacement motor won’t bolt to the newer gearbox housing without an adapter bracket we keep in stock. That’s a compatibility gotcha that can turn a two-hour job into a return visit if it’s not caught upfront.
We source OEM FAAC motors where they’re available and cost-effective. When FAAC factory lead times stretch past two weeks, which happened regularly in 2023 and early 2024, we use quality aftermarket equivalents from established manufacturers that match the torque curves and thermal protection specs. We always disclose which route we’re taking in the written quote, and both carry our 365-Day Done Right Promise.
Signs Your FAAC Gate Motor Replacement Is Failing

- Gate moves slower than it used to, especially in afternoon heat. The motor windings are degrading, increasing electrical resistance. What worked at 7 a.m. at 75°F fails at 3 p.m. at 110°F because the weakened motor can’t overcome thermal expansion in the mechanical components. We measure the current draw against the factory spec; anything more than 15% over is a replacement indicator.
- Operator hums or clicks but the gate doesn’t move. This usually means the capacitor has failed or the centrifugal switch isn’t engaging the start winding. On FAAC hydraulic units, it can also mean the pump motor is running but the hydraulic bypass valve is stuck open. Either way, the motor is working harder than designed and will burn out completely if you keep cycling it.
- Thermal overload trips repeatedly, requiring a reset. FAAC operators have a built-in thermal protector that cuts power when the motor exceeds safe temperature. Occasional trips in July are normal. Trips in March mean the motor is drawing excessive current due to internal shorting or bearing seizure. Resetting it repeatedly just accelerates the damage.
- Intermittent operation that gets worse over time. The commutator bars inside the motor are wearing unevenly, causing the brushes to lose contact at certain rotational positions. You’ll notice the gate works on the third try, then the fifth, then not at all. By the time it’s intermittent, the housing is usually full of carbon dust that’s also contaminating the bearings.
- Burning smell or visible scorching on the operator cover. This is end-stage failure. The insulation on the motor windings has broken down, creating localized heating that can damage the control board and transformer. In Chandler’s dry climate, we’ve also seen this triggered by dust accumulation on the motor vents combined with degraded cooling fins. If you smell electrical burning, stop using the gate immediately.
Before
AfterReplacement Cost & What’s Included
| FAAC System Type | Typical Installed Range | What’s Included |
|---|---|---|
| 412 / 415 swing-gate motor only | $890 - $1,350 | Motor, mounting hardware, limit-switch reset, force testing, photo log |
| S800 underground motor replacement | $1,400 - $2,100 | Motor, submersible casing seal, hydraulic fluid top-off, anti-corrosion treatment |
| 746 / 844 slide-gate motor | $1,200 - $2,400 | Motor, chain/sprocket inspection, limit-switch alignment, safety edge verification |
| Control board replacement (if damaged) | $340 - $680 additional | Board, programming, remote relearn, written settings record |
The range depends on three factors: whether the existing mounting bracket and arm coupling are reusable (corrosion is the variable here in Chandler’s hard water and occasional irrigation overspray), whether the control board was damaged by the failing motor’s current spikes, and whether the gate’s mechanical components need adjustment after the new motor’s different torque curve changes the travel dynamics. We inspect all three during the initial diagnosis and itemize them in the written quote before any work starts. The price you approve is the price on the invoice. Under Haven Standard Clause 1, we don’t start until you have that number in writing.
Every replacement includes our documented photo record: the old motor’s part number and condition, the new motor’s serial number, the limit-switch settings, and the force-test readings. You get a copy; we file the master. The 365-Day Done Right Promise covers the full installation, parts and labor, with no expiration within that window.
DIY or Call Us?

There’s a safe middle ground here, and then there’s the part where you should stop.
What you can check safely: Verify the breaker hasn’t tripped. Confirm the manual release key is fully returned to the engaged position (a partially turned release will let the motor run without moving the gate). Look for obvious obstruction or binding. Check the photo-eye alignment if your system has one. These three checks solve about 20% of the “dead motor” calls we get in Chandler, and they cost nothing.
Where DIY goes wrong: FAAC motors, especially the S800 underground units, involve 115V or 230V electrical connections in wet or buried environments. The hydraulic systems operate at pressures that can cause serious injection injuries if a line is cracked and pressurized. More commonly, we see homeowners remove the motor successfully, discover the replacement doesn’t match the mounting pattern, and reassemble the failed unit badly enough that the gate slams or reverses unpredictably. A gate that weighs 400 pounds and moves with motorized force is not a safe troubleshooting environment without lockout procedures and force-testing equipment.
If you’ve done the safe checks and the motor still won’t run, call (520) 827-3159. We’ll quote the replacement before we come out, and we’ll name what we found, name what it costs, and name what we left behind.
FAQs
In Chandler’s climate, a properly maintained FAAC motor typically lasts 10 to 15 years. The limiting factor is usually heat cycling: 110°F summer days followed by 50°F winter nights stress the winding insulation more than in milder climates. Motors in shaded housings or with adequate ventilation last toward the longer end; motors in direct sun with clogged cooling vents often fail closer to 8 years. We recommend annual cleaning of the motor vents and a current-draw check every two years. Call (520) 827-3159 to schedule a maintenance visit or add it to your replacement appointment.
Sometimes, if the failure is limited to the capacitor, the brushes, or the external wiring. We carry those parts and will repair rather than replace when it’s the right call. However, once the motor windings, commutator, or hydraulic pump section is damaged, repair costs approach replacement cost without the warranty coverage. We diagnose first, present both options in writing, and let you decide. Our free second opinion applies here too: bring us another company’s repair quote and we’ll review it at no charge.
Most FAAC motor replacements take 2 to 4 hours from arrival to final force test. A straightforward 412 or 415 swing-gate swap with a reusable bracket is usually on the shorter end. S800 underground units take longer because of the excavation, hydraulic bleeding, and submersible seal testing. We schedule the full window, communicate if we’re running early or late, and never leave a gate inoperable overnight unless the homeowner specifically requests a next-day completion.
We stock the most common FAAC motors for Chandler’s residential gate types on our trucks, including 412, 415, and S800 variants. For less common models or older discontinued series, we can usually source within 24 to 48 hours through our supplier network. If we don’t have your specific motor in stock, we’ll tell you exactly when it will arrive and schedule the installation accordingly. We never charge a return trip fee for the part delivery. Call (520) 827-3159 with your model number and we’ll confirm availability while you’re on the phone.
Ready to get your gate moving again? Call (520) 827-3159 now. A live person will answer, verify your FAAC model, and deliver a written, itemized replacement quote before any technician is dispatched. Estimates are free, and every job is backed by our 365-Day Done Right Promise and Haven Standard documentation.
Written by Adrian Vance, Owner, Vance Gate Repair Chandler at Vance Gate Repair Chandler, serving Chandler and nearby areas.





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