The provided receiver that came with my TTX300 took a dump today when I was test driving the car. I read on the Tactic site that they come with a "failsafe", but what this failsafe entails I have no clue. I was hoping someone could point me in the right direction here. Some random info:

When I plug my ESC and steering servo into my second TR325, they work just fine. I tried holding the link button, but no luck, unless I'm missing something with the link procedure. Finally, this happened shortly after I installed my new Tactic BB High Torque Metal Gear servo, although not sure if that even has anything to do with this.

Fail safe is for when the vehicle loses signal from the radio. If set up, it will set the servos or throttle to a predetermined position to stop/slow the vehicle so as it won't runaway out of control. Not too sure why your reciever stopped working though.

I failed to mention that the LED blinks red now, and the ESC beeps much like when the radio isn't powered on.

I had 2 of the TTX300 system receivers die immediately. Same flashing red light you describe. It happened when I plugged them into a Tamiya ESC (TEU-105BK). The receiver must be sensitive to voltage or a signal. I was not able to recover them and sent them back to Tower. I e-mailed them and let them know. Not sure they care. I sent it all back and just ordered an Airtronics MX-V for my boy. Worked like a charm on the same ESC. Good luck.
Jose

Thank you! I will check out the airtronix unit.