We have a new air conditioner and it still has warranty, but the service center doesn`t want to send a worker even to check the problem. They say if we want we can bring the air conditioner to them. So I had to call a HVAC professional. While I was checking yellow pages I found this one. It`s an unpleasant feeling to give your almost new purchase in the hands of some1 you don`t know. But I have to say that in just few hours the conditioner was working very well, like before. I recommend this professionalist!