I am not as lucky as you. I had my LG air-con installed by All Best in Jul06. Since then, my air-con had gas and water leaking problems until Dec07. Despite LG found out and pointed out many times the problems were stemmed from improper installation, their technicians were unable to fix the problems. When guarantee period was over, we were ignored by All Best. All Best even said the problems were from lacking regular maintenance!!! We have engaged another air-con installator to fix our problem. It is again confirmed that our air-conditioner problems were stemmed from improper installation. It is found that a gas pipe was bended improperly until there was a crack, and gas leaked from there. As for the water leakage, the fan coil was installed in an improper angle which affected water flow and caused water retention.
