I purchase an onida branded air conditioner 1.5 tons 3 months before after installing its starts cooling very well 2 to 3 days but after it its goes down on cooling and when we feel some thing wrong we called there service man to checkwhat the problem after checked they found the compressor become weak we gone shock how it become weak infect this is a new onida product and there is no high low electric issue in our area and its also connect with there ac stablizer .that time they take the machine to change it because it is under warrenty but when its come back the quality of product is not up to mark and the quality of cooling is not great as to be.