I experienced the same thing. Turns out that Dometic had a bad batch of 15k units that developed freon leaks and stopped cooling, from around mid 2014 until early 2016. As I recall, Dometic had a fire in one of their plants, and they subbed out the assembly...things went south quickly. I dont guarantee those dates or that story, but thats what a dealer told me recently. Anyway, Dometic is replacing them, and they are offering an additional 2 year warranty for just a few bucks. Don't recall exactly how much. I've read where some fellows are on their third AC unit. I would definitely call Dometic and ask for a replacement.
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2016 Ford F-350 Lariat CC, 4x4 SRW. B&W turnover with extender. 2015 CC Silverback 29RE, fitted with Reese Goose Box. Amateur Extra Class K5TS, 2016 nights camped 16
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