Kohler 12KW Standby Generator with 100 Amp Automatic Transfer Switch and App Connect New - 12RESVL-100LC12
Our generators for backup power provide reliability and performance. When you lose power during an outage or storm, a hard-working 12 kW KOHLER generator keeps your appliances working, the heat or AC running and your security system on. OnCue Plus Generator Management System is standard with every RESV or RESVL generator.
What our Experts Think
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Complete standby system out of the box
The Kohler 12RESVL‑100LC12 Standby Generator includes both a 12 kW generator and a 100 A automatic transfer switch (ATS) with a 12‑circuit load center—giving you a fully integrated backup solution without separate purchases.
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Automatic, seamless power backup
Starts and restores power to your home in about 10 seconds after an outage, so critical systems like HVAC, lighting, and appliances stay running with minimal disruption.
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Dual‑fuel flexibility
Runs on natural gas or liquid propane, giving flexibility depending on availability, and simple field conversion between fuel types for convenience.
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PowerBoost tech for heavy loads
Built‑in PowerBoost technology helps start large appliances (e.g., air conditioners) without dropping power to other circuits—important for whole‑home reliability.
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App‑connected monitoring & control
With OnCue Plus remote monitoring, you can check generator status, receive alerts, and monitor performance from your smartphone or tablet.
Q&A
Q: What is the Kohler 12RESVL‑100LC12 Generator?
A: A complete 12 kW standby power system with a built‑in 100 amp automatic transfer switch (ATS) and app connectivity, designed to provide reliable backup power for homes and essential circuits.
Q: How does it operate during power outages?
A: The generator automatically starts within about 10 seconds of a utility failure and restores power without manual intervention.
Q: What power output and voltage does it deliver?
A: It supplies 12,000 watts (12 kW) at 120/240 V single‑phase, ideal for typical household loads including HVAC, appliances, and electronics.
Q: Does it include a transfer switch?
A: Yes — a 100 amp indoor automatic transfer switch with a 12‑space load center is included, simplifying installation and safe utility/gen power switching.
Q: What fuel types are supported?
A: Dual‑fuel capable — runs on natural gas or liquid propane, with easy field conversion between fuel types.
Q: Can I monitor it remotely?
A: Yes — Kohler’s OnCue Plus remote monitoring system and app connect let you view real‑time generator status and alerts on your smartphone or tablet.
Q: Is the power quality safe for electronics?
A: Yes — advanced voltage and frequency regulation delivers premium power quality with low harmonic distortion, protecting sensitive devices.
Q: Is it quiet and durable?
A: Designed for quiet, neighborhood‑friendly operation with a corrosion‑resistant steel enclosure and powder‑coat finish.
Maintenance Tips
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Run weekly exercise cycles: Let the generator automatically start and run under light load regularly. This keeps internal seals lubricated and ensures reliable starts during power outages.
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Change oil & filters on schedule: Replace engine oil, oil filter, and air filter regularly (often every ~100 hrs or yearly whichever first) to protect the Series 7000 V‑twin engine and prevent wear.
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Keep battery charged & terminals clean: A healthy battery ensures automatic start; clean terminals prevent corrosion and weak starts.
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Inspect fuel supply & lines: Check natural gas or LPG connections for leaks and secure fittings to prevent performance issues.
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Clean air intake & enclosure: Remove dust/debris from vents, keep the enclosure free of dirt and moisture to maintain airflow and quiet operation.
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Check transfer switch and connections: Periodically inspect the automatic transfer switch and wiring for tightness and corrosion to ensure proper power transfer.
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Monitor app alerts: Use the included App Connect/OnCue Plus remote monitoring to track status, service reminders, and fault codes without manual checks.
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Annual professional service: Have a certified tech check coolant, regulator, ATS calibration, and controls yearly for long‑term reliability.
