Actions: You think this is too easy. Probably a system-related problem (dirty filter, low charge, dirty condenser; the usual stuff.) But you also realize that it's been a little cooler than most summers. You measure the indoor temperature and relative humidity and find that it is 74.5 degrees F, 68 percent relative humidity (rh), 66 degrees F wet bulb temperature, and 63.3 degrees F dew point.
You are concerned because with a cooler than normal summer, operating times are less (less moisture removal), and carpet over concrete slab can hide moisture problems and create an environment for fungal growth. You wonder if there is a moisture-holding sand layer between the vapor barrier and the slab, which would exacerbate moisture problems under the carpet.