There's no air coming from my vents at all. When i turn the **** to 1,2 or 3 nothing happens....no air is flowing. What can be the problem.....thanks

 

Make sure you have it set to the correct mode (i.e feet-->head, defrost etc)

 

what about 4 ?

 

check the "card" its under your glove box, shoot I dont know whats its called, I forgot, but if your 4 works, its could be that card, I had a similar issue, ordered the card off nissanparts.com, for $25 my a/c worked on all setting. its a harness that hooks up to this credit card looking thing... someone help me out

 

is it underneath when you open the glove box inside or just underneath on the outside? It does work on 4 by the way but not any others. Thanks

 

check the stickys its a resistor or something.

 

Your resistor back is blown. Check the FAQ sticky. The part is 30 bucks or so and takes 5 mins to swap out (two philips screws).

(Nissan dealer-only part).