My trailer is very high and I don’t have the ladder needed to get up there today. But the wiring of motor blower ( if it had one) and the backward installation of the motor are two places to start. One thing that did happen, which is what got my attention in the first place was that the a/c unit in the loft sounded like it was on, but when I climbed into the loft, the room was warm and warm and unit was not blowing air. I went to thermostat to turn it to “off” position. And i could still hear the unit running, but not a blower on. So I slowly went through each setting (fan lo, fan high, cool low, etc) and made sure the system changed to each setting. And it did. So when I changed it to “off” mode, the system shut off. My daughter swears the air was blowing correctly prior to this incident. She would always close the vents when she got to chilly so she should know what she’s talking about. That is when I went to test the a/c in the main area. It is a high ceiling so I’ve not been able to notice what direction air was blowing from prior to this. But it, too, is blowing in wrong direction. So I’m very confused. I guess I’ll start by finding an RV a/c service tech.