hi boss, my unser having problem with its aircond for two years and I have spent more then 3k on fixing the aircond but the problem keep coming back. I was advised to change the compressor everytime theres problem but everytime after i changed it, the problem came back after a few months. During the recent change, after I change my compressor, the foreman advise me to add a new fan to the car air cond and after two weeks the problem come where smoke come out from my air cond belt. Until I have fixed it recently but when I open the air cond to the max, no cold air coming out from the car air cond. Can I advise what is the problem?