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Cooling fans not spinning to cool controller board


KASHMIR
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Posted (edited) · Cooling fans not spinning to cool controller board

Hi

I want to cool my ultimaker 2 controller board. So i designed a housing

to hold 2 fans 50mm x 50mm. These are SUNON fans

12v  1.26 amps each. I have connected both fans together, positive wire from one fan

together with the negative wire from the other. the other 2 wires plus and minus are

with connector. When i plug the connector to the board marked ( FAN 19-24 V )

and power it up, the fans dont spin. I see that the fans are trying to spin, but ever so slowly,

barely nothing but trying. Am i doing something wrong ?? I am not that electronic tech savvy.

Can someone please help me.

I have attached a picture.

Thanks

IMG_0515.thumb.JPG.90d3d2233e0da150b8264e13351a6302.JPG

IMG_0515.thumb.JPG.90d3d2233e0da150b8264e13351a6302.JPG

Edited by Guest
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    Posted · Cooling fans not spinning to cool controller board

    So you got a china board and it doesn't work... Well, that can happen.

    Also, try the direct power 2 pins near the plug. You can't just plug any fan and hope it works.

    2pin24v.thumb.png.1fbbf2f01520219299807b9e05b44af7.png

    2pin24v.thumb.png.1fbbf2f01520219299807b9e05b44af7.png

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    Posted (edited) · Cooling fans not spinning to cool controller board

    I tried connecting it to the other one that you showed in the image, but the fans still do not turn, can you please help me. i don't know why, it should work.

    is there something i have to add in the circuit of the fans ??

    and the fans have 1.26 watts output not 1.26 amps.

    Edited by Guest
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