Report "I have two Amcor AmcorAire UCHW-H09AF2 Split System Air Conditioner units -- 2 years old. One works fine, but the other does not blow heated air (Heat Mode). It is cold outside, but the good unit is blowing heated air at the same time the bad one does not. All other settings are the same. All suggested service numbers, as well as the company number in user guide are disconnected. Thanks"