Fan constantly blowing in new Inspiron 15R
I received a brand new Inspiron 15R 5521 on Wednesday. It's running Windows 8 and around 30 seconds after starting Windows, the fan starts up and then never stops. I haven't installed any programs and the fan starts without opening any programs or apps. I've gone through the device manager and checked that every device has the latest software as well as installing any Windows updates. It already had the latest bios but I tried re-installing that with no affect. I've ran through the diagnostics from the boot menu and everything passes. The computer is not even warm to the touch when the fan starts and the CPU usage is in single figures. I've also re-installed Windows using the backup image. What could the problem be and how do I go about fixing it?