Quote from: rogerthat55 on July 06, 2018, 02:50:01 PM

I know you guys are talking economics, but I'm still wondering if anyone has had any issues with the Fan being at 0 RPM. I'm assuming it's the controller board. Bitmain wants me to ship the whole machine back, but at these current LTC prices, not really worth the shipping fee. A new controller board from Bitmain is $60. I've tried swapping out with different fans, but no luck. I only have one L3+, so I can't swap out with a different controller board. I do have an A3 that I've switched off. Maybe I can use that controller board? Thanks.

I have never tried but think the A3, D3 and L3+ IO boards are the same on all units maybe someone can confirm?
As for the fan, which one does not work Fan1 or Fan2 or both? Each has its own drive circuit just below the plug connection a
simple component might be burned out (fan might have crapped out and blew the circuit), see if there is any burn on the surface
mounted components there, does the fan spin easily or grind a bit when spinning. You can grab on on Ebay another IO board
also fairly cheap now.