Originally Posted by mkosu04
keep your doors and windows closed more... there is too much humidity in the camper and then the moisture condenses on the cold ducts rather than in the AC coils.
typically this means the door is open too much, letting in too much hot damp air.
Nailed it! More than likely you would have also noticed quite a bit of condensate water coming off your roof... The AC coils will be able to remove a considerable amount of humidity from the air, but in your situation, looks like you were in a very humid environment. One in which was too much for your AC to handle.