Ours has always thrown a code when it shut down...
Ours will also shut down when the gen is in AUTO mode. If the drive engine is started when the gen is in auto mode - the gen will shut down. It's a safety feature. You can have it in Auto mode while the engine is running, but when the ignition is turned off and back on - the gen will shut down.
Steve & Stacy,
Ned and Ellie (Red Labrador, Border Collie/Boxer)
2015 Seneca 36FK
2007 Toyota FJC - on the trailer
2020 Coors Light - in the fridge