"The blue light on my PS3 Slim Cooling Fan isn't working!"
We get this question all the time and believe it or not the solution is pretty simple.
But don't worry you haven't lost your mind, it is something most people seem to miss.
There is an inconveniently placed button on the bottom of the cooler (near the cable), this is the power switch for coolers blue light.
The whole point of the switch is to give people the option to save money on electricity usage (not that it would save you much).
So yeah, make sure before you panic and come to the conclusion that your Sony Ps3 cooling fan is broken ... check the power switch is on.
Hope this helps most of you out :)