Trane XR80 Furnace w/AC, yesterday 10 Jun 2012, AC stopped working, Thermostat shows nothing. I checked circuit breaker both for Furnace and Compressor; actually reset them as well. Nothing. When I open the door the LED light is not on. With Furnace power off I reset each cable lead, and then turned power back on; still nothing. What I did notice is when hold the door switch closed and turn on power, I see the LED come on for 2 seconds and then shut off. Any advise would be appreciated