what's wrong with my Air Conditioner?????

Ok, few weeks ago my AC had been working fine. Then all of a sudden, it just stop working on blowing out hot air. I thought it was the fluid that was low so i got it pump recently but still havent work also??? Does anyone can give me some clue what might be wrong??? Before it's stopped working, I installed my LED washer fluid. I'm not sure if because of that, and I also try taking it out as well and still not working. Please helpppp!!! it's getting hot