Preventing outside air from venting in.
We just returned from Yosemite on our first long trip in our Sunseeker 2690. As we got back into the hotter temps, my wife noticed quite a lot of hot outside air venting into the the RV through the large vent screen below the oven. I believe this area is the intake for the furnace. It made keeping the interior temps difficult to keep cool.
Does anyone know if there is a way to close this vent or prevent the outside air drafting in?