6214w fan problem

Hey,
I bought a Zepto Znote 6214w for about 2 years ago and have had a few problems with it so far, and now the fan is the problem. It makes a lot of noise except when it runs at full speed. It sounds like it is out of balance, and therefore constantly hitting something. I have tried opening the computer and blown/vacuumed around inside, and used some wd40 in the ball bearing holes, but it doesnt really matter as it keeps being noisy.
So now I want a new fan to put in as I think it would solve the problem. The problem with this is that I can't really find a serial number on it. The only thing I've seen is a sunon sticker but it's really hard to look thru so many different models. I was wondering if anyone in the forum knew what fan zepto is using in the 6214w. To help out a bit I've attached a picture. I know I should get some new cooling paste but I haven't got around to it yet. Let me know if you want some more pictures. As far as I can see the fan is 50mm*50mm*5mm or just around that
Thomas G. R.

 

Check this thread on getting a replacement fan for a 6324.
I know it's another model but maybe you can contact Zepto and ask if they use the same Sunon fan in the 6214 as in the 6324.
Cheers.