Performed level 2 furnace cleaning. Burners and flame sensor are clean. Heat exchanger looks good. Gas and exhaust levels are normal. No CO detected in the air. Heat rise was 60 degrees. HEPA filters, furnace filter, and the water panel were replaced. I checked the thermostat for the message. It was only a notification for an annual furnace check. Unit is operating normally at this. Thank you for choosing Black-Haak! Please take the time to complete our online