New forum member here.. My old gen is a Honda EU2000i - six years old.. starts/runs like a champ every month when I test it. I needed more capacity (and am a big fan of inverter gens) - researched and then bought a B&S P4500 (model number 30795) inverter generator. Very happy with it.. except I think the CO2 sensor is a bit too sensitive. During my break in period/testing, it has worked flawlessly- but can shut off after 20-30 mins - as it THINKS the CO2 level is too high (because the CO2 indicator flashes red). Trust me.. I have this gen running in a well ventilated space in the middle of my long driveway.. so airflow around the unit is NOT an issue. I truly don't think it is defective, but, it IS a bit too sensitive. Any ideas on how to disable the CO2 detector? I found a wiring diagram at this URL P4500 Wiring Diagram but I can't discern what leads to disconnect. (Obviously, this wasn't an issue with the old Honda as it doesn't have a CO2 detector..). Thanks!!!