Work Performed: Performed annual maintenance on Goodman single-stage furnace. Reviewed system operation and overall condition. Results: **Furnace Maintenance Checklist:** - Burners and flame sensor cleaned and inspected - Heat exchanger inspected — no cracks or corrosion found - Combustion analysis performed — readings within manufacturer specifications - Blower motor and capacitor tested — operating properly - Pressure switch, limit, and safety controls tested — functioning normally - Gas pressure and temperature rise checked — within range - Drain and venting system clear and secure - Filter inspected — satisfactory condition - Overall system running efficiently and safely Advised client of HRV cleaning recommendation. Discussed Comfort Club membership options for ongoing maintenance and priority service. Checklist attached.