Blue shield club heating maintenance. Joe(JC)Ritchal. 09/25/2023 Performed full system evaluation and safety inspection. I arrived to perform the customer annual fall service. The customer didn’t have any questions for me. So I went ahead and checked the thermostat in the heat exchanger. I the test fire the furnace and checked the burners. I checked all the safeties, The inducer motor and the gas valve. I performed a carbon monoxide test and change the filter as well.