I have a 2016 TT and the Dometic AC cooled great for 6 months. Now it seems to blow cold air but does not cool down the trailer. I hear the compressor kick on, but when I come back to check a 24 hou...
I've just had my second Dometic AC replaced under warranty. I had the same symptoms as you on both of them. In case you didn't know, you have a two year warranty.