[Resolved]  Samsung — samsung split AC 1.5 ton making noise

I purchased this samsung split AC 1.5 ton (model no.- AS18UTAXTL) on 5 March 2009 from Vikky Electronics, Indore. My installation was done well by a man sent from the shop.
But i noticed a major problem of my AC making noise.The noise disturbs me a lot and doesnt let me sleep at night.I called up at the customer care many times and they sent me engineers to check my AC but the problem couldn't be sorted out. I still face the same problem, those engineers say that there is some problem with installation, but i have verified that the installation is perfectly fine.
Those samsung care engineers are not able to solve my problem, and they are running away from it also their service is poor, and below expectations!
I feel that my AC's internal plastic parts are making noise but still i don't have the surety about it.
I am not at all satisfied after having an AC in my room coz its noise doesn't let me sleep at night and moreover i am tired of making calls at the service center.They ask me details of my AC n blah blah every time and waste my time in it but still i am carrying on with the same problem.The one prime aim of these call centers is to maximize the call time and nothing else!
PLEASE GIVE ME SOME SOLUTION TO IT