Thank you for the replies. I checked the duct work with an inspection camera and everything looks to be sealed and clean of any blockage.
I also pulled the filters and checked to see if the divider plate was still in the correct spot "it is"
I then went ahead and climbed up on the roof and removed the shroud to check the coils and all the lines to ensure there wasnt blockage from anything.
I think I am going to upgrade to 2 15k btu units for the added oomph, but I am worried that the ducting may not be able to handle it. I imagine that back when this was being made and sold they had the option to install 15k units with the same ductwork. Possibly even add a 3rd on over the bed and remove the manual vent. Any advice would be appreciated.
Thank you!
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