Thor Forums

[TurnerFam]

right, and the truth is that while it 'seems' as if changing out the inverter to a 'better' one solved the issue, it might just be MORE true that simply changing out the inverter to the SAME type of replacement inverter may have ALSO solved the problem.

This is why jumping to 'conclusions' can be problematic when it comes to 'comparing' different products, or versions of products, etc. If you haven't taken everything into account, you are simply resolving that whatever you DID change MUST have solved the problem, and therefore what was there before WAS the problem, or in this case, the 'version' of the product, such as a modified sine wave inverter versus a pure sine wave inverter.
Wiring can be suspect in a lot of ways. Factories pre-wire the coach to specs that they have designed, according to the manufacturer of the products they are installing, according to common-sense electrical wiring schemes and codes, and according to their own schematics for how the product will be used, and even 'where' it will be installed. A rolling vehicle chassis also adds to this reasoning, as there is not the same 'ground' as you would expect in a home.

It sounds like the factory may have some things to consider, at least with how the Aria is wired for it's GFCI outlets. If other coaches of similar design, like the Palazzo and others, built in the same factory, side-by-side with the Aria, are not having these same issues, then something amiss is going on. Yes, there could be some 'bad' inverters, which could lead to tripping GFCI circuits in some situations, but it sounds like a wiring run or connection that the Aria uses can be helping to contribute to this issue.