Air Conditioning Fix??

[kingston73]

Hello, somewhat new to the forum. I tried running my AC today and nothing, the compressor belt is tight and the pulley spins, but when I press the button in the cab there is no change. The manual says there should be an audible "click" and the center of the compressor should spin, but it does not do either. Where should I start with troubleshooting this? It worked fine last time I ran it, but I haven't turned it on for a few weeks.

2001 2.7L engine

[2000tundra2wd]

sound like a r134 leak. on accident i let all of my freon out and my compressor didn't run at all. i added some more r134 and everything was fine. you said your truck didn't run in a while, so i guess it all leaked out.