Duet Wifi - V1.02 Fan o Diode Required?
If I have read correctly, no extra flyback diode is required on Fan 0 (already protected by board) for a part cooling fan ? It is a 12v brushless that cab take 230 or so mA.
Brusshless fans don't need the diode in any case. And the wiki does say only boards prior v1.02 would need a diode if using a brushed fan, so you should be good without an extra diode.