Very loud buzzing noise when fan is on

I’m posting here in the case that Bluetti monitors this.

Have a max that has a really loud buzz when the fan is running, clearly, loudly audible across the room. Please see the demo videos showing the problem at the link below.

Thank you, I am planning an excursion soon, I hope we can get this resolved quickly!


What is a Max that you are referring to?

Sorry if it was a little cryptic, but I thought people would get it…

AC200Max :slightly_smiling_face: