Air flow at ducted vents not working
i'm looking for some input regarding a 08 Damon outlaw 3611, with 2 Carrier V A/C units. The RV is fully ducted and right now we are going through a 100+ degree heat wave and the cooling system is not keeping up in the least.
for some reason the first 4 vents are blowing heavy, then the next pair feel like someone is breathing on you, then the next single is blowing like the fan is on low, and lastly the pair of vents at the bed nook is barely working.
I have pulled some vents to see if there is blockage, and i feel air pressure, but for some reason the vents are not directing it?
Is there something I can do to increase air flow? or do I need to install another A/C Unit on the roof?