i have purchased samsung split ac 1.5 ton in 2005 .my comlaint is samsung air conditioner"s compressure triping for hours after 1 or half hour.i have complaint 21 of july2010 enginier visited n insure that i will not repeat.but after 1 day problem repeated.after that 27 july 2010 i have ragister complaint again.30 after 4 days enginier came and change the tempreture sensor and he gone.but problem will not short out.