CommentStreams:D5f71c64ffc36b6dc3d9f7f950d01d46

Please note - in the command line that you entered to turn the fan on initially there is no 3 after python. python /home/pi/x735-v2.5/pwm_fan_control.py

This presents an issue if people are following the next step where you advise people to type: @reboot python3 /home/pi/x735-v2.5/pwm_fan_control.py

these do not match and because of that the fan will not turn on (although the image of your terminal is correct)