I have two controllers ... one for the pump and one for the fans. The pump is connected directly to the Aquaero ... while the fans are connected to the Aquaero via a Aquacomputer SPLITTY9 Active.

My pump controller can change the speed of the pump ... but my fan controller cannot change the speed of the fans. They look identically set up (only difference that I can see is in the min / max RPMs).

I have swapped the fans to the pump controller (no change), deleted the fan controller (software reports no controller at sets output to 100%) but there is no change in the speed, varied the controller set value (no change), changed the controller to a curve based on CPU temp (I know that is a BAD curve but I haven't installed any temp sensors yet ... still, no change).



The min is 20%, max is 100%, controller is at 40% so the signal should be 20% + 40% of 80% = 52% (which it is) ... but changing the controller doesn't move the rpms off 280 (Cryorig silent 120mm fans).



Any other suggestions?

Quoted from "Bartdude"

What type of fans are they, DC or PWM? have you ticked the box for fan type under the fan section?

Thanks for the reply. I should have said. The are PWM but changing the option back and forth does nothing. I can get the RPM meter to change by physically stopping the fan (RPM goes to zero) so I know it isn't a faulty RPM reading.