Thread: does my lappy need maintenance?

i have a four year old apple laptop. it runs great - not slow or anything.

recently one of its fans has been making noise. it will start buzzing every once in a while and after a few minutes it sounds like it speeds up and the buzzing stops.

my guess is that there is dust in the fan. should i be concerned with this? there has never been a computer in my house (all macs) that had to be serviced.

it's not irritating because i almost always have music playing when on my lappy, so i'm just hoping that i can ignore this and not pay for anything (mac service people have gotten pretty conceited over the years).