I am a professional home service technician, and I recently completed a furnace maintenance job for a client. The job entailed verifying the operational performance of the system, cleaning the carbon buildup on the flame sensor, assessing the amp draw of the blower and inducer motor, and replacing the air filter. I also checked the electrical connections and ensured that the thermostat was functioning properly. After completing the maintenance, I provided the client with a detailed report outlining the findings and recommendations for future maintenance.