Outdoor York Air Conditioner Making House Smell Musty
I've got an outdoor d1np030n05606 York air conditioner/furnace in a house i moved into a few months ago. Recently (now that summer is hot), we've been running the air and i've been noticing a mildew-y smell in the house, especially when you come in from outside.
I'm assuming its my air conditioner, but how do i find the problem?
I can't find any manuals here or online telling of how to open the unit to see if there is a filter or some kind of buildup somewhere in it.
Also look around under the house, Is there a 6 mil vaper barrier on the ground if there' s a crawl space?
DO all the ducts have foil tape?
Are the ducts even connected to the floor with no gaps?
Is there any standing water under the house?
Look around any plumbing and see if there's any leaks.
Has the crawl space of basement been air sealed?