[Draaaaven]

My Xbox 360 power brick recently got a red light where the orange on should be. the Xbox works fine for about 15 minutes then crashes and wont turn on again. You can unplug and re-plug everything back, yet it repeats this process. This is a major pain-in-the-ass because I can't play long rounds of Zombies. Cheers for your help.

[Blunt]

Yeah your fucked bud, you either have to buy a new power brick or just get an xbox one lol
The reason this is happening is because the fan inside has obviously been clogged by dust meaning now your fan isn't even running and the power brick can only stay on for 15 minutes at a time before over heating.
I guess you could open it give it a good clearing and see if it works but chances are your fan is most likely broken now.

[Saikou]

I had this same problem about two years ago, but I never got it fixed or anything.

[JzJad]

I mean worse to worse: https://www.youtube.com/watch?v=pKUPuyqSt_g
I never had to look up a video when mine crapped out but for the most part you could clean it, or even mod it a little and add a 120mm fan