I tried to put freon but did not work. I'm looking the a/c fuse but I can't find it. I checked under hood there's a panel that says a/c relay, I replaced it and still not fixed. Anybody can help me that cause of the problem? Thanks

 

Could be any number of things: A/C compressor or clutch, leak in the system (large), malfunction in the control head, failure of the blend door motor in the plenum chamber, wiring fault somewhere, blown fuse, plugged expansion valve....Maybe some other things I didn't think of. There are people who specialize in repairing air conditioners, you might be best off paying somebody to fix it right the first time.