I called CSI at 4:30 Pm on Friday on one of the Hottest days on record, we had had a power outtage the night before and when the power came back on, aprarently the surge Fried my blower controler, and the unit froze up. Within a couple of hours Steve Pulled up in my driveway, found the problem, had to order a part to fix it permanetly but he did know a work around to get me by untill they had the part to fix my system! Thanks Steve I appreciate your prompt service!