Mainboard fan not running

Sovol SV06 Plus
1

I was just wondering if the mainboard fan on the SV06 Plus is always (?) turned off, or under what condition it will turn on. Checked today with an IR camera to see if there are irregularities and well - one of the stepper drivers was at 90 °C and the fan still turned off. Is this normal? Shouldn’t the fan be on to prevent this?

Checked if the fan was free to spin and didn’t find any problems. All other fans are working as should be.

Edit: For som reason unknown to me, it just turned on. So 90 °C on the drivers appears to be considered safe I guess? Now the modules are below 55 °C.

2

I have same issue, but it doesn’t work at all. I have few models that the fan do not work with them. Sovol tech support are useless. First I had sd card error, they changed me a mainbord, now this issue. All the models from printables works well but my models that I’ve made in fusion 360, they do not turn on fans. Tried cuta,sovol cyra,prusa,orca…same result. Sent them gcode file and it worked well on their printer. What can it be?
P.s. all those models worked fine before. Changed 2 sd cards already, made a new stl files.