Hey guys, Haven't been posting much latly n im only jumping on here to see whats wrong with my ps3. ( i know, its bad )

So heres my problem, my sister was watching a movie on the ps3 and it turns it self of automatically ( so she says )
so now all it shows is a red light. i go to turn it on

The light goes

Green then blue with a yellow light next to it and then goes back to a red blinking light.
I hear a beep, it turns on for 2 seconds before it turns it self off again?

Surly this has happened to someone else before ?

Any help will be appreciated