Contacted ghl on their website and confirmed wrong power supply. I now have it hooked up to a 12v power supply and I still cannot get dosing amount I want. Now when I hold down override button for 1 minute I'm getting 45ml. Can't get 60ml/min. When I program it to only dose 5ml it still runs the same 45ml. I've even tried manual dosing 5ml 10 different times throughout the day and still get 45ml. Wonder if the previous owner messed this up by using the wrong power supply. Any suggestions?That most certainly could be your problem. The motors are 12vdc, and the power adapter is 24vdc. I would start with the correct power supply.