By far, Brad went above and beyond to resolve our ptoblem. You need more like him. First tech came out quickly, diagnosed issue (found out later, mis diagnosed problem) and left with no sense of when he would be back , no working air, and little info. Second day, I called office couple of times, trying to understand if we were going to be a couple days, weeks or months with no answers. Brad came out, re-diagnosed our problem, found something completely different--bad board. Located ew part, went to Columbus to get, came back that evening. got unit running, stayed around to monitor air temps, make adjustments and finally left with us in a good place. Can not say enough about his work ethic. Great job by Brad, DorMar's communication leaves a lot to be desired