Fan and motors stopped working

[concreteturtle 0]

Hi all,

Just came across a strange problem.

I added some belt tensioners to my x-axis belts, loosening and retightening the pulleys to make sure everything is perpendicular.

Now when I turn on the machine, the electronics cooling fan doesn't run at all, and the x-axis stepper buzzes a couple of times then the whole thing is silent.

My ulticontroller is still working ok through all of this and the blue LED on the thermocouple lights up, but there is no cooling fan so I don't want to risk running it.

Going to test the fan header to see if there is voltage there, and run the fan off a supply to check it.

What else should I check?

[concreteturtle 0]

Ok, after a little testing, the power supply is putting out 19.52V.

The fan header is putting out 11.84V, so it looks like my fan has died.

Anyone have a good source for a replacement?

[concreteturtle 0]

Anyone happen to know what the correct fan header voltage is?

I'm assuming that the electronics fan runs on 12VDC, can anyone confirm this?

[Daid 306]

Yes, the electronics fan runs on 12V. Most likely it's the fan that died.