Sorry for the confusion on this. Please give a call with any questions! Furnace clean and tune. Cycled system. Checked heat exchanger, ok. Checked, removed, and cleaned burners and flame sensor. Both ok. Checked and tested igniter, tested normal. Checked and adjusted gas pressures to maximize efficiency. Checked and tightened electrical connections and clamps. Cleared drain lines. Preformed combustion test and found normal levels in exhaust. No CO found in airstream. System was very dirty and it is recommended for yearly maintenance on this equipment. Unit operating normal at this time. Job complete.