Cpu fan for v. 5535

[stuckinvillage]

I purchased a FS Esprimo mobile v. 5535 a couple of years ago. Now the CPU fan has stopped working (it's correctly connected to the mainboard, so I presume it's broken since it's not spinning).

I obviously need a new CPU fan, but I'm not sure which one to buy.
I don't know anything about CPU fans for notebooks/laptops nor my current cpu fan.

Many thanks in advance!