[Cacciato2006]

It’s the champion duel fuel inverter generator. To be fair I am running it one propane and I know I’m only getting 2,950 to 3,000 watts out of it. I’ve tried it with both eco on and off. If every breaker is off except the rear AC it will turn on and run fine in either mode. If I turn on the central vacuum breaker only (not running the vacuum) and try again the ATS will start switching. You can shut off the vacuum breaker and repeat with any other breaker in the RV and it will do the same thing. I’ve been running this generator on a 30 amp trailer for several years using at 15k btu Coleman AC. I can think of one time it tripped the break on the generator. Scratching my head at this point. Are you thinking if the voltage drops to low the ATS is looking for another source of power?