Samsung AC
Wibreting sound is high and now is not cooling

I was purchase one Sam sung AC last Jun, this AC is compressor sound is very high and high vibrating, i am many time complaint the issue, Sam sung Engineer attend the fault but not solve the issue, Last time One Engineer tried the problem solve but 10% solved, Now AC cooling not working only air passing. My experience in samsung very positive, actually My TV, Washing Machine is Sam sung But This AC is field the Experience.