Need some help and advice please. I'm working on my dad's 1992 vette LT1 a4, and the AC was working fine but now it's dead and nothing works to turn it on. I'm in Texas and it's blazzing hot here and we need to figure out what went wrong with the AC. Can anyone tell me what I should be looking for or does anyone know what might have happened. The AC is charged and worked very well like a week ago, but now we can't even get anything to run. Now the compressor does kick on and the sucction line is cold. What happened to this LT1?

 

does the blower blow?
does it just blow hot?