What does the CoSense unit on the Generac iQ3500 generator look like and where can it be found?

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The CoSense of the Generac iQ3500 is a carbon monoxide (CO) detection system integrated into the generator, and not a visible or separate physical component. This safety system is designed to monitor CO levels in real-time and automatically shut down the engine if a dangerous accumulation of carbon monoxide is detected around the generator.

The CoSense system uses patented algorithms that operate much faster than a standard residential carbon monoxide detector. When the generator is running, the CO sensor continuously analyzes the ambient air. If levels begin to accumulate dangerously, the system immediately shuts down the engine and displays an LED alert to notify you of the danger. This protection is maintenance-free, fail-safe, and fully automatic.

Location of the sensor: The CO sensor and detection circuit are integrated into the entire electronic system of the generator, typically incorporated into the control panel. You cannot see the sensor itself as it is part of the generator's closed circuit system. There is no need to locate or access it for normal use.

How to check that CoSense is working: The system operates automatically every time you start the generator. If you see a warning LED illuminate or the generator suddenly stops during use, it means that CoSense has detected a dangerously high level of CO. This generally indicates that the generator is not far enough from a window, door, or ventilation outlet, or that it is not properly oriented to direct the exhaust away from your position.

Important safety note: CoSense is never a substitute for the proper use of the generator. You must always place the iQ3500 generator outside, at least 1.5 meters away from any window, door, ventilation outlet, or building, and direct the exhaust away from these openings. The CO detection system is an additional layer of protection, not a permission to use the generator in an inappropriate location.

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