My fan ;(

[Laur]

Okay so my laptop  fan is making a weird noise when i open it but if i take the whole fan out and i clean it good it works like a charm for like 1 day then it starts making noises again, it is something like it is struggling to live or something but i looked at it with my flashlight and it works fine. If i clean it at every 2 days it might work proper but opening the case is a pain in the booty, i found a second hand fan at a decent price but i dont know if thats the problem or not
help me 

[Eurobeat]

Could be the bearing that's seizing up, if it is then it's best to get a new fan since oiling the old bearing will just make it last another week or so and then it will do the same thing