I have a 2001 Holiday Rambler Endeavour. The dashboard A/C unit's blower fan puts out a very weak flow of cold air. I think it's because what appears to be the cabin air filter, mounted under the dash in the passenger side, is clogged up and needs replacing or cleaning to allow better air flow.
I don't see anything in the owner's manual about how to clean/replace it. Little help from those who have knowledge regarding this?