Part Cooling Fan

GBusy24 · 27 Dec 2016, 15:11

My part cooling fan has stopped working. There seems to be a failure associated with the PWM Fan0 port that I have that fan connected to. It shows 24.1 volts w/ no load, but w/ the fan attached, voltage drops to 2.6. I attached another fan that I know to be good to it and have the same result. Advise please.

dc42 · 27 Dec 2016, 22:07

Sounds like a bad connection or a failed MOSFET - although that's a strange failure mode for a MOSFET.

When you set the fan to fully on with a fan connected, is it the positive terminal that isn't at +24V, or the negative terminal that isn't at 0V?

GBusy24 · 28 Dec 2016, 01:40

Negative terminal is showing 21.3.

dc42 · 28 Dec 2016, 07:36

In that case, my guess is that the Fan0 mosfet has failed.

GBusy24 · 28 Dec 2016, 15:55

Any type of warranty with these boards?

dc42 · 28 Dec 2016, 16:56

Yes, speak to your supplier.