Air Conditioning in upstairs air handler was blowing air but not cool enough to manage the temp. After some research, we determined ourselves that maybe the Freon was low, which is typically a leak somewhere. James from CArney was great. Personable, he diagnosed that freon was low, estimated it was a leak and gave us a range of possibilities in terms of cost. Which we appreciated. Fixed the problem but we have to have him back to evaluate of realy a leak. Thanks James !!