Red Power Supply Light

Its the plug that you are pluging the console into. The power brick is protecting your xbox from xbox 360 power. i suggest not pluging the console into that power source anymore

Hmm, if you move that console out to the garage or living room, does the same issue occur? If it does occur in different outlets, the the console will need to be replaced. You can check your warranty status and set one up here.

Im having the same issue, from day one with my brand new console the power brick has been working fine for the length of time im playing but once i shut the console down the power bricks light goes red!

Then in order to get the thing working again i have to unplug every cable from it, and then plug everything back in and it works again until i power down. it happened again tonight i plugged everything back in and the light was green, i was called to sort something out so walked away from it all, when i had finished what i was doing i retuned to the xbox and the light was still green, this is where the tricky thing comes in. I had not plugged in the play and charge cable and  thought i better do so, as soon as i did that while the console was powered down the red light on the brick came on. i left it plugged in and unplugged everything else as normal then tried to start the machine up and again i had a red light, i tried it again with the play and charge cable unplugged and it worked.

I think that there may be a short in that cable some place and the power brick is protecting the xbox. try this method if you are using a play and charge cable it may just work.

Hey Dam TheMan78.

This is a really old post. (Like 9 months ago)

If you have tried different outlets in your house and you still get a red light. Call Xbox Customer support