Issue with parts cooling fan

I have a small issue with the parts cooling fan
On the slicer i have set up the speed 100% but on klipper i have 39%! Any ideas?

IMG_20211012_135738|666x500

Something is messed up here.

Have a look what value is set in the gcode.
Usually slicers produce values from 0 to 255.
Somewhere 255 is set to 100(%).
The value 100 equals approx 39% of a maximum value of 255.
You may check fan the settings in printer.cfg