iroc254u

Hey i need some help. My tail will not spool up so i checked the tail with a batter and it worked fine so i checked for power to the maotor and that was fine. Did i burn up another eboard? Is ther a different rout to fixing this prob as far as hooking up the tail seperate to fix this prob. I Really dont want to spend the money on a 2nd eboard if there is a diff rout? Any help please