Free on-site gate assessment - hinges, posts, and your LiftMaster or Nice gate operator checked before anything is quoted
The assessment is free and the quote is the invoice.
FAAC Gate Motor Replacement: The Richmond Owner’s Guide
FAAC gate motor replacement in Richmond typically runs $890-$1,650 installed, depending on whether we’re matching a 412 swing-arm unit, a 415 underground hydraulic, or a 746 sliding-gate operator. We stock FAAC-compatible motors and mounting hardware on our Richmond service trucks, and most replacements are completed in a single visit once the model is confirmed. If your gate stopped mid-travel, reverses randomly, or groans without moving, the motor assembly is the likely failure point.
Most Richmond owners notice the problem during the morning exit rush. The gate clicks, the arm twitches, but the driveway stays blocked. Sometimes it’s a capacitor that swelled after years of Richmond’s marine-layer humidity cycling through the control box. Sometimes it’s the motor itself, windings cooked from trying to move a gate with corroded hinges the owner hadn’t noticed yet. We see it on properties from Marina Bay to the Richmond Hills, especially on gates installed during the 2015-2019 building surge when FAAC 412 and 415 units were spec’d heavily.
Which FAAC Models This Applies To
FAAC prints the model number on a metal label inside the control box lid and again on the motor housing itself. The four series we replace most often in Richmond are:
- FAAC 412 - Single-arm swing-gate operator for residential gates up to roughly 800 pounds. The 412 uses a brushed DC motor with an external capacitor; the capacitor fails before the motor roughly 60% of the time, but owners often replace both once the box is open.
- FAAC 415 - Underground hydraulic swing-gate operator, popular in Richmond for aesthetic reasons (no visible arm). The 415’s motor and pump are sealed in the foundation box, which makes model verification critical; the 415 LS (low-speed) and standard 415 use different motor assemblies and won’t interchange.
- FAAC 746 - Rack-driven sliding-gate operator. The 746 motor mounts horizontally and couples to a gearbox; the gearbox often outlasts the motor, but misalignment between motor and rack accelerates wear on both.
- FAAC 844 - Heavy-duty sliding-gate operator for commercial or large residential estates. The 844 uses a three-phase motor on higher-voltage installs; replacing one requires verifying the site’s single-phase vs. three-phase supply before we quote.
The OEM-versus-aftermarket decision for FAAC is straightforward in our experience: FAAC’s own motor assemblies include the matched capacitor and thermal cutout calibrated to that unit’s draw curve. Quality aftermarket equivalents exist (we’ve had reliable results with specific Italian-manufactured assemblies), but they require verifying the capacitor spec separately. We quote both options in writing under Haven Standard Clause 1, with the OEM part number documented either way.
One compatibility gotcha we catch regularly: the 412’s mounting bracket changed slightly after 2018. The motor itself is the same, but the bolt pattern on newer arms is offset 8mm. We measure before we dispatch.
Signs Your FAAC Gate Motor Replacement Is Failing

- The gate hums or clicks but doesn’t move. The motor is receiving power and trying to turn, but the output torque isn’t reaching the arm or rack. Often the start capacitor has failed; the motor draws current without generating rotational force, and the thermal protector eventually trips.
- Intermittent operation, especially on cold Richmond mornings. Brushed DC motors develop dead spots on the commutator. When the gate stops with the brushes on a worn segment, it won’t restart until vibration or manual assistance rotates the armature to clean copper.
- The gate moves slower than it used to, or stalls on the slope. Motor windings degrade gradually; reduced torque output is the first symptom. Richmond’s salt air accelerates terminal corrosion, which increases resistance in the power path and compounds the problem.
- Control box smells hot or the thermal cutout trips repeatedly. The motor is drawing excessive amperage, either from internal shorting or from mechanical overload (binding hinges, damaged rollers, debris in the track). Replacing the motor without fixing the mechanical issue guarantees premature failure of the new unit.
- Visible oil leakage around a 415 underground operator. The hydraulic motor’s seal has failed. The motor may still run, but it’s drawing air and losing pressure; continued operation scores the cylinder bore and turns a seal job into a full motor-and-pump replacement.
Before
AfterReplacement Cost & What’s Included
| FAAC Motor Replacement Scenario | Typical Installed Price |
|---|---|
| FAAC 412 swing-arm motor (OEM, with capacitor) | $890-$1,150 |
| FAAC 412 swing-arm motor (quality aftermarket) | $720-$980 |
| FAAC 415 underground hydraulic motor/pump assembly | $1,250-$1,650 |
| FAAC 746 sliding-gate motor (motor only) | $950-$1,280 |
| FAAC 746 motor with gearbox replacement | $1,400-$1,850 |
| Hinge or roller repair (if needed, added to motor job) | $180-$340 |
What drives the range: motor brand (OEM vs. aftermarket), whether the mounting bracket or gearbox needs replacement too, and whether we find secondary issues like corroded hinges or misaligned photo-eyes that affect the new motor’s lifespan. Every quote is written and signed before work starts, per Haven Standard Clause 1. The price we write is the price on the invoice.
Our 365-Day Done Right Promise covers the full installation: motor, labor, and any adjustments needed within that window. Under Clause 4, you receive a photographed record of the installed motor, its serial number, limit-switch settings, and any mechanical repairs we made to protect it.
Vance Gate Repair Richmond is an independent service provider; we are not affiliated with FAAC S.p.A. We service and stock parts for nine automation brands including LiftMaster, Mighty Mule, and Ghost Controls.
DIY or Call Us?

There’s a safe middle ground, and then there’s the part that can go wrong fast.
What you can check safely: verify the breaker hasn’t tripped, confirm the manual release handle is fully re-engaged after recent use, and look for obvious obstructions in the gate path. If you have a multimeter and know how to use it, checking for 120V (or 230V, on three-phase 844 installs) at the control box terminals tells you whether the problem is upstream or downstream. Document what you find; it saves diagnostic time.
Where DIY goes wrong: FAAC motors are high-torque devices with stored energy in the gearbox and, on 415 units, hydraulic pressure. Removing a motor without supporting the gate can drop a 400-pound leaf on its hinges or worse. The control box capacitors hold charge after disconnect; a brushed motor’s commutator can arc if the wiring is disturbed live. We’ve been called to Richmond jobs where a homeowner’s motor replacement worked for two weeks before failing, because the underlying hinge corrosion wasn’t addressed and the new motor burned out pulling against the same drag.
We don’t charge to look. Call (510) 944-0953, we’ll verify the model from the label, and we’ll give you a written price before anyone picks up a tool.
FAQs
Most FAAC motors we replace in Richmond have run 8 to 14 years. The coastal salt air and marine-layer moisture cycling cut that roughly 20% compared to inland Bay Area cities; we’ve seen 415 underground units fail at 7 years when the foundation box drainage was poor and the motor sat in condensation. Regular hinge lubrication and keeping the control box gasket intact are the two factors within an owner’s control.
Sometimes. Brushed motors can be rewound or have their commutators turned, but the cost approaches replacement once labor and downtime are counted. We evaluate this case by case; if the motor is a current-production model and the failure is a replaceable bearing or brush holder, we’ll quote the repair. If the windings are damaged or the hydraulic pump is scored, replacement is the sounder value. Call (510) 944-0953 and we’ll tell you which category yours falls into.
Most FAAC motor replacements are completed in 2 to 4 hours on site, assuming the model is verified beforehand and no secondary repairs are needed. A 412 swing-arm swap is typically on the shorter end; a 415 underground unit requires excavation of the foundation box and takes longer. We schedule a window, not a surprise arrival.
We stock FAAC 412 and 746 compatible motors on our Richmond service trucks. The 415 hydraulic assemblies and 844 heavy-duty motors are warehoused locally and available next-day; if your gate is inoperable and the model is one of these, we’ll secure the site and schedule the replacement for the following business day. Call (510) 944-0953 to confirm availability for your specific model.
Written by Adrian Vance, Owner, Vance Gate Repair Richmond at Vance Gate Repair Richmond, serving Richmond and nearby areas.





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