this happens when the dealer fails to inform a new owner, during the PDI, that they need to run the furnace with the windows/vents open for awhile, before using it for real.
this was covered in my PDI but i had already read about this needing to be done, during my research before i bought my Roo.
it's mentioned very often on all RV forums.
makes me wonder what else your dealer didn't cover in the PDI.
did they tell you about "seasoning" the tent ends?
did they cover proper closure pocedures for the tent ends?
did they advise how to prevent condensation?
did they advise using a water pressure regulator?
did they show you how to use the electric side of the water heater and not to turn it on unless you had water in the WH?
just to mention a few things that dealers fail to mention to new owners.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC