I bought an XBOX 360 Slim 250 GB last winter, and until now have had no problems with it whatsoever.
Last night I tried playing Battlefield 3 and during the installation of the HD texture pack, I got this error message: ""The Xbox 360 is shutting down to protect the console from insufficient ventilation. You can turn the console back on after the power light stops flashing." The console then flashed red lights for about 3 minutes straight.
I gave the console about a half hour to cool off. I tried again and it did the same exact thing. I cleared the shelf it was sitting on completely and made sure the power supply was well ventilated too, when I tried even signing in, it shut itself off again. I'm really not sure what to do, and if theres anything I can do before maybe sending it off for repairs. Any help would be extremely appreciated.