Three red lights flashing

When someone say that his/her Xbox is having 3 red lights Flashing problem, It means it needs to be repaired. If you are using Cooler than it is not a cure but a prevention. You could have used cooler before acutally having the problem just to prevent your Xbox. But now you will have to either get it repaired from Microsoft (in case your Xbox's warranty is not expired, but one thing to note is that you will have to wait for at least 3-4 weeks to get back your Xbox) or you can Fix your Xbox's 3 Flashing red lights problem yourself with the help of DIY Video guide available on Internet. You can fix yourself without any technical knowledge.

http://www.360-hq.com/xbox-tutorials-23.html

Go here to answer you questions.

Billy D

If your symptom is : Three lights on the Ring of Light flashing red on the front of your Xbox 360 console. The upper-right quadrant light is the only light that does not flash red.

then you have a hardware fault of some sort and it will be most likely that Microsoft (or the store you bought it from) will need to look at it for warranty work. If it is not under warranty any more you will need to find someone who does repairs on xboxs to look at it for you.

Microsoft have some info on their website in case you wanted to view:
http://support.microsoft.com/kb/907534