1990 integra a/c problem

I have a 1990 integra with an a/c problem, Las year I upgraded to r134a and worked great 'till now. I turn on the a/c and the second fan comes on, inside blower blows, but all hot. If I jump the lead to the a/c clutch it works fine, so I think it may be the relay for it, but I don't know where it is. Also when I jump it to make it work I checked the refrigerant and it's ok.
So any ideas? Thanks

I also have a 1990 Integra. What did you do to convert to R-134A

if your a/c has a leak, find it and fix it. Then to convert you will need to empty the r-12 thru a shop (can't to do it yourself). Then use a diy kit, the interdinamics one is ok, they even have a video online on how to do it.

My isssue is not the refrigerant, a relay is bad, but I haven't needed the a/c . The weather has been nice lately. Nor cal weather