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 Los Gatos Owner’s Guide
We stock and install FAAC-compatible gate motor replacements for Los Gatos properties, with most completed jobs running between $1,200 and $2,400 installed depending on the series and whether the existing arm bracket and control board are reusable. Same-day replacement is available when we confirm the model and voltage by phone, which takes about three minutes. Most owners realize the motor has failed when the gate stops mid-travel, reverses without obstruction, or the opener hums without moving the gate - usually on a foggy Los Gatos morning when the photo-eye is already struggling and the added load finishes off a weakening gearbox.
Which FAAC Models This Applies To
FAAC motors follow a clear series naming system once you know where to look. The 400 series (412, 415, 422) covers residential swing gates up to roughly 18 feet and 1,100 pounds; the 700 series (740, 741, 844) handles heavier residential and light commercial swing applications; and the S800 series is the underground hydraulic line common on Los Gatos estates where visible hardware would spoil the stone pillar aesthetic. The label is on the motor housing, usually a metal plate with a barcode and the voltage rating - 115V or 230V, and this matters because a 230V motor will not run correctly on standard residential power without a converter that we rarely recommend.
We carry both OEM FAAC motors and select aftermarket equivalents from HySecurity and US Automatic that match the mounting pattern and encoder specs. The aftermarket route saves roughly $200-$350 on parts but requires verifying that the existing control board will recognize the replacement motor’s hall sensor output. On a 2019 install we did off Tait Avenue, the board rejected an aftermarket motor until we swapped in the matching encoder cable - a $40 part that prevented a $1,800 control board replacement. We document that check in writing before we quote.
Signs Your FAAC Gate Motor Replacement Is Failing

- Gate stops at the same point every cycle. This usually means the internal limit switch encoder has lost position tracking, often from water intrusion in the motor housing after years of Los Gatos morning condensation. The motor runs but cannot confirm where the gate is, so it defaults to safe mode and stops.
- Audible grinding with reduced gate speed. The worm gear inside the gearbox is stripping. FAAC uses a bronze worm against a steel wheel, and the bronze wears first by design - but once the profile degrades, the motor labors and draws excess amperage that can damage the control board.
- Intermittent response to remote or keypad. If the motor capacitor is failing, it cannot deliver the startup torque consistently. The control board sends the signal, the motor clicks or hums, and nothing moves until the third or fourth attempt.
- Gate reverses immediately after starting. This can look like a photo-eye issue, but a motor with a shorted winding will spike current and trigger the board’s overload protection, which the board interprets as an obstruction. We test this with an ammeter before condemning the safety loop.
- Visible oil leaking from the motor base. The FAAC hydraulic series (S800) uses mineral oil for ram pressure, and a weeping seal means air is entering the system. The gate slows on cold mornings and may not close fully, which we see frequently near Vasona Lake where the fog sits lower and temperatures drop just enough to thicken degraded oil.
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AfterReplacement Cost & What’s Included
| Component | Price Range (Los Gatos) |
|---|---|
| FAAC 400 series motor (OEM) | $680 - $920 |
| FAAC 700 series motor (OEM) | $890 - $1,350 |
| Aftermarket equivalent motor | $480 - $720 |
| Labor: removal, install, limit programming | $420 - $580 |
| Arm bracket replacement (if corroded) | $140 - $280 |
| Control board compatibility test & adapter | $80 - $160 |
The total installed price for a standard residential FAAC motor replacement in Los Gatos runs $1,200-$2,400. The spread depends on three things: motor series and brand choice, whether the existing mounting hardware is reusable, and if the control board requires a firmware update or adapter to recognize the new encoder. We test the full circuit - motor draw, board output voltage, and safety loop response - before we quote. The price we write down is the price on the invoice. Under Clause 1 of The Haven Standard, no work starts until you have that written number in hand. Our 365-Day Done Right Promise covers the motor, the labor, and any related adjustment we made during the install.
DIY or Call Us?

There is one safe check a homeowner can make: verify the breaker labeled “gate” or “opener” has not tripped, and confirm the manual release key still disengages the motor so the gate moves by hand. Beyond that, FAAC motors weigh 35-65 pounds, run on 115V or 230V power, and store significant torque in the gearbox even when unplugged. The limit-switch programming requires a specific sequence of remote presses and physical gate positioning that, done incorrectly, can over-travel the gate into the stop post or vehicle.
We are not affiliated with FAAC; we are an independent service provider with no brand incentive to sell one motor over another. If your motor is repairable - sometimes a capacitor or encoder cable fixes the symptom - we will say so and quote that instead. Call (831) 246-7187 and we will walk through the model number location and what you are seeing. If it makes sense to send a technician, we will name a same-day or next-day window and the name of the person who will arrive.
FAQs
Most FAAC motors we replace in Los Gatos have run 8-14 years. The hillside properties off Los Gatos Boulevard see shorter lifespans, roughly 7-10 years, because the steeper grades force the motor to work at higher amperage on every cycle and the morning fog accelerates corrosion in the housing seals. Call (831) 246-7187 for an exact quote - estimates are free.
Sometimes. A failed capacitor, encoder cable, or external limit switch is worth replacing individually. Internal gearbox wear or a shorted winding requires motor replacement - the parts are not sold separately and the labor to rebuild exceeds the cost of a new unit. We test and photograph the failure before recommending either path.
Most FAAC motor replacements take 2.5 to 4 hours from arrival to final testing. That includes removing the old motor, inspecting the arm bracket and control board, installing and leveling the replacement, programming travel limits, and documenting the settings with photos. We do not rush the limit-switch calibration - a gate that closes too far damages the post and the motor.
We stock the 400 and 700 series in both OEM and aftermarket configurations, plus the common S800 hydraulic rams. If your model is less common - the 390 sliding-gate series, for example - we confirm by phone and source it for next-day install. We never charge a trip fee to assess; the written quote is free.
Written by Adrian Vance, Owner, Vance Gate Repair Los Gatos at Vance Gate Repair Los Gatos, serving Los Gatos and nearby areas.





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