Originally Posted by dirtracing
Well after spending 3 hrs at the manufacture Monday. They met with a technician from suburban and said that I need to add at least 1 if not 2 more vents to my unit. After telling them that I had taken the cover off the front of furnace and got good air flow they feel that it is being restricted with only 4 ducts hook to the plenum. I'm going to give this a try myself before any holes are put anywhere to see if it helps. I can't believe that no one else has ever had this issue if that is the problem. My camper is a flagstaff 8528bhws
The tech may be correct, but it kinda defies logic. No air flow so you add more outlets? I might go along with increasing INLET air, as a squirrel cage fan will "Unload" (not pump air) if the inlets are blocked or semi blocked.