air from AC escaping into the ceiling cavity
My camper has developed sort of a stale smell that was only occurring when I ran the air conditioner. I cleaned the coil and duct work and all parts that contribute to air coming into the cabin, yet...
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Some A/Cs are ducted some are not. Just a hunch but bet they use same A/C for both with ducts on the A/C sealed off for non ducted units. Wonder if those seals may be causing the proble. In any case I would pull the A/C and check gaskets etc.
