Macbook Air 13 mid 2012 fan is always on, normal?

[Orka]

Hi. I've been using my new Air for two weeks and i noticed lately that fan is always on, it's barely audible but still it's on.
Even when laptop is cold, i open lid laptop turns on and fan goes on (but very quietly).

I think when i just bought it i was surprised that it was off sometimes, i even showed it to my wife, "here, check this beauty, completely silent, like iPad". Is it me, may be i initially just didn't listen hard enough and it was supposed to be always on or something is wrong? I haven't installed anything new.

 

[simsaladimbamba]

The fan is always running at 1,800 RPM at idle, under load it can spin up to 6,000 RPM

Those Macs in their heat - a sine of over-heating? - a short story by Mister GGJstudios

 

[Acorn]

if you want completely silent buy a samsung chromebook. there is no fan inside.