Have a Trex 450 and it was flying fine. I went to put it in a airwolf fusealage and all the sudden when I plug the battery in everything works except it won't spool up. All the servos move but no power to motor. Also I put a new align ESC and it won't work either. The first ESC that came with it that I thought was bad quit making the sounds you hear when you plug it in. The new one I just put in doesn't make any sounds either. They both should make startup sounds. What else could it be? The new ESC I thought would do it.

Make shure your throttle stick is all the way down and also your trim and plug it in, it should go in sequences.

I have been flying this heli for a long time so I know about throttle stick position at startup. It should also beep with stick all the way up. This is setup mode. It doesn't beep in any situation.

How about checking the connection to the motor since its the motor that makes the beep and you mention that it doesn't spool up that could be it.
Maybe it looks pluged in but could be a cut somewhere in the connection to the motor.

Hi,
yes, I agree, check the motor side of the esc.