Congrats on your new Seneca. We have found ours to be a great product. Sorry to hear about the Inverter problem, but please understand a new motorhome is like a new boat. A new boat has a far greater chance of sinking, than a year old boat. There are a whole lot of systems that have been gathered in one box, your Seneca, and they all have to be tested and made sure that they work together.
Read through these forums and others and you will see lots of adventures and learning curves that many of us have encountered.
Ric and Jan Golding
2016 Jayco Seneca 37FS