I conducted a comprehensive diagnostic on the Lennox HVAC system to identify and resolve any operational issues. The process began with a thorough visual inspection of the unit, followed by a detailed examination of the electrical components and connections. I tested the thermostat functionality and calibrated it to ensure accurate temperature readings. Next, I checked the refrigerant levels and inspected the air filters for cleanliness. I also evaluated the blower motor and fan operation, ensuring they were functioning efficiently. Finally, I performed a system performance test to confirm that the unit was operating within optimal parameters. The diagnostic revealed a minor issue with the thermostat, which I promptly corrected, restoring the system's efficiency.
