[PacRat05]

Just joined to find out what was up with my A/C was working then it quit on settings 2 and above

 

[nismo5]

welcome to clubfrontier

 

[Clint]

Just joined to find out what was up with my A/C was working then it quit on settings 2 and above

Bad resistor on the blower housing. Simple to repair yourself.

Clint

Just joined to find out what was up with my A/C was working then it quit on settings 2 and above

Welcome to the forum.
I found you a link with pictures. Not sure what year yours is but both address the issue the same way.
How to replace A/C Resistor - Second Generation Nissan Xterra Forums (2005+)

Clint