2019 Hurricane 34j. Has firefly system.
Watch this video
https://youtu.be/vMl4EfpA9To
When you press the button to turn the fan on, it "tries" to start, but doesn't. Like a jump start. I can do it on and off a few times with it not starting and staying on as long as I space then on/off presses. I have to do it on/off quickly and then after 2-3 times it will start and stay on.
Here is the kicker. It ONLY does this when plugged into shore power or the generator is on.
It does NOT do it when only running on house batteries. On house batteries only, it starts immediately (and stays on) every time.
I "chatted" with Thor CS today. They said it was working as designed. Can't imagine that is true.... anyone have any thoughts?