Simplify3D User Forum

Hi I'm having trouble with my cooling fans. They won't turn on as instructed in slicer. To troubleshoot I added all 6 fans t0 to t5 and put 10% to 60% values on each and a different layer on each. My plan was to watch cooling screen on k1 and see what fan turned on at the designated value to identify them. None turned on. Obviously I have 3 fans all different in use. How can I get them working

I know some fans won't even start spinning at 10% power, so you might want to try 60, 70, 80%, etc just to make sure that isn't the issue.

If you open up the gcode in a text editor, do you see the M106 commands that you expect to see? Do you have another file where the fans turn on as you expect? Comparing the M106 commands in those 2 files may give some hints.