Heliguy Forum - RC heli forum

Hi im hoping somone here can answer this question for me, I seem to be having big problems with current esky 25a brushless esc's, either its something im doing or I have just pretty much blown 2 in as many weeks and have a 3rd on the way.

The way I have noticed they are becomming faulty is when I have no power connected to the heli, the blades, main drive cog and motor turn and continue to spin freely with a quick twist of the blades with my hand, however when I have the battery connected and everything powered up, everything becomes stiff and hardley able to turn at all without some fair bit of force, the first time this happened, I thought it was a faulty motor, so I changed that, and still had the same problem, so changed the esc, and hey presto everything worked again for approx a week, now its blown again, one other thing ive noticed is when I plug power in rather than getting just the 3 standard beeps from the motor, I get 3 sets of double beeps from the motor.

My motor is the Xtreme 4000kv brushless motor, im using Esky 11.1v 1800mAH 20C batteries, the stock reciever and 3 x towerpro SG90 servo's for the head and SG50 for the tail, just curious if the esky esc's are renound for packing up or if I should look at maybe grabbing a 30a and any recomendations for them.