central air not cooling after addition
In the late summer and into the fall, we had an addition put on our home. When the construction was finished we were into heating season, and we use a different heat source than our air. Now that it's getting hot, we've uncovered the central air unit, opened the vents, turned on the air and it's blowing, but not cooling. Is there a magic switch that one of the workers might have hit at some point during construction? I'm going to call our GC in the morning, but it's not now and I thought maybe I could fix this on my own. The addition was not so big that the unit wouldn't be able to cool the whole house, at least after running for an hour or two. Any suggestions are welcome! It's a carrier unit, if that helps.