Hi, just bought a Anet A8 Plus and installed Marlin 2.0.9.3 . Everything seems to work fine and even a calibration cube was printed very smooth.
Already mounted two upgrades (belt spanner for x-axis and fanduct).

But a big problem is that the partcooling fan is by default on.
When I turn on the machine: Fan is on.
Wenn I start printing the first layer: Fan is on.

Once I powered up the machine and enter the fan menu, the value for the fan is 0%.
Once I change it to any other value, it starts working properly. So I enter any value (and press enter) and then switch back to 0% the fan turns off. Until I start a print, then it turns on, again, and that's why I get warping (even on a small 30x30x30mm calibration cube - which prints nearly perfect but the warping).

So my problems are:

I. Partcooling fan is always on

II. "release media" doesn't work

Edited 1 time(s). Last edit at 12/29/2021 02:55PM by cysign.

Have you submitted this as an issue on the Marlin GitHub?