My 15k Dometic AC isn't cooling very well lately. I did all the "fixes". Cleaned filter, checked for air leaks, cleaned coil inside and outside, not freezing up. It has been in the lower 70s, so it should be doing a little better. I thought of having freon checked, but read that most newer rv units don't have check port, and it would be more cost effective to replace unit rather than have a port installed. I also ran it at 104 volts at a park with bad power a while back. With that said, if I have to replace it, I'm undecided on what to go with.
All the major brands claim to be more efficient and better than the others.
Any input would be appreciated.