AC not working right

[accely]

Hi everyone.

I bought a 2005 H2 Black a few months ago. I tested the AC when I bough it and it was working perfect. Recently when I've tried it I've noticed it is barely blowing, almost feels like nothing, I can however feel the cold air. Also, you can hear a "tap" noise on the passenger side every 3 seconds or so while the A/C is on, soon as you turn off the AC the noise will stop.

Any ideas? I ran the issue by a guy at a local auto shop and he said it might be the blower or some other part that "opens up" when you turn on the ac/heat. He also mentioned it's a cheap part ~10$ but it'd take 10 hours to take apart the dash (labor would be through the roof)