Hum, mine have never sweated and I have camped in all sorts of temperatures. That cabinet never seems to be any hotter or colder than normal either but then the converter does not run too often. I have noticed the counter top will get warm if the converter does run alot (like the time I did not realize that the fridge was left on dc oops). You sure it is not leaking at a filter connection and getting the line wet?
HTT: "EscapeII" 2016 Shamrock 23WS (current)
PUP: "Escape" 2010 Rockwood HW 277 (gone)
TV: "Bruce" 2011 Dodge Durango V8 Hemi Crew
Just us gals (me, Sis and our daughters)
Traveled 19520 miles and 209 nights in 7 years and counting