For this super tune-up I inspected the air handler and condenser. For the most part all equipment was measuring within manufacturer specs and running well. I recommend adding insulation to the customer's attic as what they have right now is only about 8 inches thick and their energy bill is somewhat high and decompressed installation could be contributing to that higher bill. I also recommend replacing the defrost control board as it is burnt up and May fail during the winter. Lastly I recommended to the customer getting a duct cleaning as he stated he has not gotten one since they've lived in the house, since 2005.