Quote:
Originally Posted by SuperD
Motorhome AC ducts aren't the best in the world and even if everything is ok you still may not get good airflow. Also make sure the fan speed is set to high.
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I pulled one of my round vent covers the other day. It appears the ducts are nothing more than channels cut in the styrofoam block insulation. I can see how chunks could get left behind by careless workers, plugging the system.