Geeetech

And here is my problem, my fan is always energized.
I never have 0V, my voltage is between 9 and 22V.

Thank you for the reply,

I took all my measurements on the port called "air blower" on the 4th picture here:

https://fr.aliexpress.com/item/32961854811.html?src=google&src=google&albch=shopping&acnt=494-037-6276&isdl=y&slnk=&plac=&mtctp=&albbt=Google_7_shopping&aff_platform=google&aff_short_key ...

Hello,

I need some pieces of advice because i have problems with my A10.
I wanted to put a laser etcher on it and connect it to the fan plug to get my 0-5V signal.
Then i saw that the laser was always on.
I measured the output voltage of it and found something weird:
when i set the fan power to 0 ...