does it start flashing immediately, or does it take five seconds or so to start? Mine, and the other two people I know who have ego-t, do the same thing even on a full charge, after 5 to 7 seconds. I personally think it is a protection circuit to keep the coil from burning out from running for too long at a time (this is just my guess, though).if it starts flashing immediately, that would tend to indicate that it's not getting correctly charged. Has your head
shop turned you on to a new charger to try?