Performed level 2 furnace cleaning. Inducer and blower motor bearings are starting to wear. Transition assembly has a crack starting. Heat exchanger is starting to rust and chip. Burners and flame sensor are clean, however, they are also starting to wear. Gas and exhaust levels are normal. Drain is clear. Heat rise was 52 degrees. Unit is operating normally at this time. Thank you for choosing Black-Haak! Please take the time to complete our online