I have been in this hobby for about 4 years and read the forums everyday. This is the first time I have heard about a Rx failing due to overheating. Based on my limited experience the only thing that I can think of that would cause that is a battery with excessive voltage being hooked to the receiver. Most receivers, today, will run either on 4.8 or 6.0 volt packs.

Maybe the cells in a battery pack somehow shorting together and causing a momentary overload of current.

armody, I would be very careful about using that Rx. I wouldn't put it in anything I valued. I use JR 700's in all of my planes. I like them and never had any trouble with any of them.

One other thing to check for is to make sure none of your wiring is cracked or nicked so that two wires could get together.