I've had some crazy, totally illogical stuff happen with these electrics gear. Two comes to mind, they both defy all logic, but they happened. I had a brushed esc connected up to the motor and pack and was testing to see if it all worked. Well, the motor kept getting very hot, I didn't apply any power to it, it just kept getting hotter and hotter. I unplugged the battery, it kept getting hotter, I unplugged the esc and it cooled down. I then go back and plug the esc back in again, this time no battery, and it kept getting hotter again. I did this several times that night, I couldn't figure out what or how this was happening, it made no logical sense at all. I left it unplugged and the next day, I couldn't reproduce the problem. Another, I had a servo reverse on it's own, I've used it in several planes, I had to reverse how I mounted it in order to get it to jive with the other aileron servo, really weird, unexplainable stuffl.

One of the other problems, of which I finally got to the bottom, occured last year, apparently the velcro which was attached to the RX was pulling out the christal, the contacts were barely there and I couldn't see the problem because the velcro was covering it up. It drove me nuts since I'd get the plane to the field and when I powered everything up, it would go nuts, I'd switch it off and on several times and it would finally settle down and behave. Reflecting back, this accounts for many times where I thought I was facing radio interference, it wasn't that, it just happened to be tugging at the christal a bit while in the air. I didn't figure it out until I decided to remove the velcro when I was placing it into another plane, and even then, it was only a fluke I decided to pull it off.

I've also had servo's that seemed to be dead, I stored them away for rebuild later, and find out after testing them again, they are perfectly fine.