@steamcheng The same thing happens to me with any version of cura. When it starts to heat up, the layer fan is activated, no matter what you program.
with prusaslicer it doesn't happen to me. it works only from the layer you program

@Gracy its not this. the m600 is used to automatically pause during printing, without having to be there. unfortunately this printer cannot do this kind of thing due to its limited firmware.
it would be nice to be able to access the firmware and configure things like this or adjust the pid or extruder steps. I feel like I was wrong to buy it, I am thinking of changing the motherboard and screen to be able to do those things so necessary.

@steamcheng The same thing happens to me with any version of cura. When it starts to heat up, the layer fan is activated, no matter what you program.
with prusaslicer it doesn't happen to me. it works only from the layer you program