Customer service will tell you it needs to sent off to a repair technician or engineer, but it is easily fixed if you happen to have knowledge of electronic or PC repair. If you're interested in fixing it yourself. all you need to do is replace the case fan.
There is a website called 4 my samsung that has the exact parts you need for every samsung product. it cost me £25 for a new case fan but it's much better than sending it off for a couple weeks and then probably paying more.
Before opening anything up, make sure you have full anti-static equipment and only do this if you're sure you know what you're doing. if you aren't sure, then you shouldn't be doing this.
unscrew the case,
take the case off,
remove the case fan,
put the new case fan in,
screw it all back up,
make sure you have the exact same case fan. mine was 50mm x 50mm x 10mm at 12V by 0.14amps with a 2 pin connection. you can't use a PC case fan because they use 3 pin connections or molex connectors.
hope this helps.
In my own situation, I accidentally put in the new case fan the wrong way round and of course, caused the protection message. no threat - just open it back up and switch it round again. By doing it myself i had fixed it in 3 days and it only cost me £25.