I know what this problem is like as I had exactly the same problem!
Although instead of sending the Xbox 360 in for repairs I took the matter into
my own hands.

I Have Found The Fix...

You see there is a flaw within the Xbox 360 which causes this
error and it is very easy to fix.

So I have put together the complete fix in a step by step guide
that will guarantee you to be playing your games again by this evening!

What's more is I have included two fixes within the guide and
one of them does not even involve taking the Xbox 360 apart!

With this info you could make $$$'s just buying broken Xbox
360's and repairing them in about 1 hour!

Sound neat? Here's where you can get more information...

how to fix
xbox 360 3 red lights

If you've been putting off getting your Xbox 360 fixed because
you are out of warranty or because you thought it was too hard, time-consuming,
and so on, Xbox 360 3 Red Lights Repair Guide is going to show you exactly how
to fix it!

Don't suffer with this problem any longer get the complete Xbox
360 3 Red Lights Repair Guide Today:

Because you can fix the problem! - easily! - with the Xbox 360 3 Red Lights
Repair Guide.