Thats basically what EVGA told me, they said if its air I should try shaking the unit vigorously for 20 seconds. I tried that last night and temporarily plugged it into a fan header and I heard some life from the pump. Going to try it again this afternoon and completely reinstall to see if that worked. Ill let you know, thanks
i've had it happen to me before as well, you could also take the cooler out the case and shake it allot, make sure you keep the radiator above the pump block so air can go up. GL!