The Processor fan of my My Inspiron 7591 was making VERY LOUD(could hear it even during gaming with audio out on my 2.1)rattling noise, I didn't pay much attention at first, but it was getting louder then I realized it was coming from the left fan. After I quit the game and did a reboot, the loudness went away but the rattling was still there and was quite noticeable, so I checked the vents, then opened the back panel and cleaned the fans although there was almost no dust as I bought it less than 2 months ago...and checked the fan connectors as well. After that, the left fan seemed to be producing less noise (not usual smooth fan rotating noise something struggling). I had that unusual fan noise from the beginning but I thought maybe that's how this laptop's fans are. Now after 4 hours, the left fan has completely stopped working, hwinfo is showing 0 RPM for that fan, other is working fine. ePSA Diagnostics says the Processor fan is not responding properly /failed...and reporting fine for the Video/Graphics fan.... What should I do now? Should I get it replaced even it starts working in future? Anyone had any similar issues?  

Strongly feel that I should have got the unit replaced when I first encountered this weird fan sound.