So I have an '09 CRV (K24Z4 I'm pretty sure) and whenever the car is sitting at idle in park or drive the fan loudly comes on for about 5-10 seconds and then turns off and then back on again a few seconds later. It rotates through this for however long you're idling. I have no idea how to solve this and the Honda dealer said it was "normal" but I'm not sold on it...if anybody has any idea and can help that would be great, I can try and go in to more detail if needed.

Thanks!