Why is my Xbox 360 turning off by itself?

Why is my Xbox 360 turning off by itself? The Xbox 360 console can unexpectedly turn off under the following circumstances: The Auto-Off setting is enabled, and the console has been inactive for 6 hours. The console is too hot. There’s a problem with the power supply.

The Xbox 360 console can unexpectedly turn off under the following circumstances: The Auto-Off setting is enabled, and the console has been inactive for 6 hours. The console is too hot. There’s a problem with the power supply.