Not a brushless guy so I can't really help you diagnose, but I will say that if it's a problem with the ESC, take the opportunity to chuck it for something else. I've seen and heard nothing, and I mean NOTHING but problems with the A.I. series.
Having an ESC with one button you kinda know how to use is better than an ESC with no buttons and no reason it should set itself up the same way twice when you turn it on. It's not that hard to set up an ESC, honest.
Faster Than Factory
On The EDGE Racing, est. 2001 - Home of the 524, the Silverado Slammer E-MAX6X6, and the Sand Dollar prerunner
Mike Budzien | facebook.com/OTE.TheMissile | RIVCO Products | The RC Corral | iRacing.com