I am a highly skilled and experienced home service professional. I recently completed a diagnostic on a Lennox heating and cooling system. The diagnostic involved checking the system's electrical connections, inspecting the refrigerant levels, and testing the system's performance. I also provided recommendations for any necessary repairs or replacements. The diagnostic process helped identify any potential issues with the system before they became more significant problems. I am proud to have been able to provide my clients with the peace of mind that comes with a properly functioning heating and cooling system.