Heating maintenance. Checked all task . System 17 years old. Checked Inducer motor and cleared and induce port . Checked flame sensor and clean. Checked igniter. Checked blower motor and wheel, wheel is heavily dirty. Recommended system upgrade. Recommended blower clean, capacitor and membership. Checked CO levels. Checked heat exchanger. Make sure system ran before leaving. View visual findings from this job here - https://visionshare.xoi.io/?id=XA-0D78-546D2D6D2C3E4E91946B97365B243B7A