I just got a new Castle Spartan. Out of the box with the NiMh batteries everything seems normal. Prop spins and the rudder moves like it should. When I installed new fully charged 5 s Lipos I get a beeping sound from the esc. Flashes green (beeps) then if I pull the throttle light turns red (beeps). Rudder still works no prop spin. I re-tested with the NiMh batteries from the box, same result.
Does anyone know what happened? Didn't smell smoke. Just no prop action. Did I just fry the esc or motor? this is brand new out of the box.