Performed a 1st year furnace cleaning. Cleaned the burners and the flame sensor. Checked the furnace heat exchanger. Wiped down the inside of the furnace. Checked the electrical. Cycled the furnace and performed a furnace combustion test. No issues with the furnace at this time. Inspected the furnace for water leaks. Found some minor water rust spots under the intake vent inlet. Tightened up all the clamps inside the furnace. Checked underneath the drain trap. There is no water dripping at this time.