Where can I find stuff about my A.C.?

Question

Hi. I just moved in in Dec. and My RUUD air cond. is dripping water outside and the ac is not cooling well. A repairman put freon in and "fixed" the leak but it is still leaking. He went up into the attic and did something and he said the leak was fixed, but it is still leaking. The unit is a 2003 and is a RUUD achiever High efficiency model# uamb-036ja7.volts208-230, hetz 60, HP 1/3
My email is [e-mail], Sheryl Hogue