I had purchased Window AC 1.5T(HITACHI)through on 13th April 2010. After two months i.e. July I lodged the complaint that AC's cooling is not effective and it gives much more noise while cut-off compressor. They(service engg) come on 1-09-2010 for service and it was again told about its cooling and noise. It was told me that cooling is less due to working of coils with dust and noise is normal. In the night of same day, cooling effect was lost and there is no cooling at all.other features are working normal ie. fan, compressor... read full review »