I bought a brand new orion vortex R10 pro esc, connected it all up and it worked fine for about 10 minutes and then for some reason all of a sudden it stopped sending a signal to the receiver, at first i thought i blew the receiver tried connecting it to another receiver with no luck so i tested the receiver on another car and it worked fine, the weird part is the esc turns on blinks and does every thing it should but won't send signal to the receiver took it back to the shop were i bought it they opened it up but couldn't find a problem so they exchanged it, got home connected the new esc up and it worked fine, but this time it ran for about 30 seconds and same again stopped sending a signal to the receiver, at first i thought it turned of had a look and the LED on the esc was still on but the LED on the receiver was off again loosing signal. Has any one experienced any thing like this or does anyone have any idea as to whats going wrong, the fact that its happened to 2 esc makes me think some one else must have experienced this as well. Any help or advise would be greatly appreciated.