Koryo AC
AC problem not solved

I purchased 0.8 Ton AC 7 months back. In first 3 months it was working fine but when we switchen on in April i came to know that Gas is leaking and they have taken for refilling it. Now when they fitted my AC, again it creates irritating noise. I called up KORYO they sent a techinical person and he said its all because of vibration. I really dont understand why suddeny it happend last year it was working fine.

I am still looking for resolution from KORYO?