May be your Panel is faulty, this happened to my civic 2000. When I turned the blower to 2 3 or 4 the compressor wont start but it was working fine on 1, So I checked it from an electrician he said the panel is faulty, I replaced the panel for like 1000Rs.. nd bingo it is working fine on 1 2 3 n 4
So Panel might b the issue for you get it checked from a gud electrician