ida N. champaign, illinois October 14, 2019 "Appreciated changing the humidifier panel and explaining that to me. Cost$74. Also discussed biological growth in coils. The cost of the HV light ($500) is very expensive. The cost if not addressed is $200 more. Not reasonable to think that someone has $500 readily to spend during a clean and check. Dont like the sales mentality. Also why does the furnace fan/blower come on when neither the air conditioning unit or furnace is turned on?"