Hi guys,My AC has been playing up lately, the other day all of a sudden no cold air, but compressor seemed to be working. Took it down to Naidu, he checked it out and said gas empty, possible leak but nothing visible so I decided to top up gas and see how it goes (RM30).That was on the way back from work,after that drove home parked the car and only used it again the next morning and guess what no more cold air again. Plus I can hear a reasonably loud hissing sound from inside the car when I turn on the AC. Didnt get a chance to look under the hood coz I was late for work, jam was bad and even my b*lls were sweating.Any ideas on what could be the prob?Rgds