fans - Running cooling 2 Fans on ebb36

[vocal thorn]

Not quite like that

https://github.com/Klipper3d/klipper/blob/master/docs/Config_Reference.md#multi_pin

[rotund compass]

I did this, no errors fans still dont come on. didnt know if the "can0" the issue?

[vocal thorn]

do the fans work when put into [fan] individually?

[rotund compass]

no, just tried can0:PA0 and can0:PA1 seperately neither coming on

brand new fans as well 12v

[vocal thorn]

then it seems to me, your problem is something more fundamental 😛

check the polarity on the fans?

[rotund compass]

ill unlpug them and check polarity, but theyu should spin backwards

[vocal thorn]

of course not

these fans have electronics

they're not just a bare DC motor

you wire them backwards, they either explode, (if they don't have protection diodes) or do absolutely nothing (if they do have diodes)

but I didn't say swap it, I said check

aka, look that the red wire is on the + side of the port, and black on -

[rotund compass]

polarity is correct

[vocal thorn]

what can board is this?

[rotund compass]

bigtree ebb36

[rotund compass]

everything else works on the ebb36..

v1.2

[vocal thorn]

you're running an ebb36 at 12v?

[rotund compass]

24v

[vocal thorn]

but...you said they're 12v fans

and there's no voltage selection for fans on the ebb

[rotund compass]

PA0, and PA1 can be 12 or 24v

[vocal thorn]

really?

[rotund compass]

my trident is that way, 12v on a 24v psu

[vocal thorn]

how?

[rotund compass]

sorry my trident was different.. research time

[vocal thorn]

like, absolutely do reseach and prove me wrong. but I don't think there's any 12V available on the ebb36

(unless the whole board is running at 12v, of course)

[rotund compass]

my trident is 12v... dumbass me.. my 2.4 is 24v

thanks for your help.. time to find 24v fans

[frank patrol]

Correct. Only possible with a step down like K78L12-500R3