I bought this and have only been able to use the fan.  When turning it onto cool, it gives a code that the service department says means I have too little or too much power.  I believe this particular unit is not working correctly.  I have been in contact with the service dept and they are planning to reimburse me for the unit as there are no service centers available, in our area, to service it.  Also the case is not staying together at the bottom.  Either the case is missing a screw, or the case is broken where a screw should be holding it in.