INVOICE SUMMARY Work Performed – Furnace Diagnostic & Maintenance (Single-Stage KeepRite) - Performed full furnace diagnostic and maintenance - Noted rust damage from a previous issue (resolved) - Cleaned burners as needed - Current filter too restrictive; advised switching to MERV 8 - Recommended PureAirX air cleaner for improved airflow and filtration - Duct noise determined to be normal expansion/contraction - Reviewed thermostat operation with client Inspection & Maintenance Items Completed - Flame sensor cleaned - Ignitor tested - Blower motor inspected - Blower wheel inspected - Amp draws tested - Heat exchanger testing performed - Temperature rise checked - Safety controls tested - Pressure switches tested - Pressure switch tubing cleaned - Condensate trap cleaned as needed - Drain line flushed - Intake/exhaust inspected - Venting inspected - Filter inspected (MERV 8 advised) - Electrical connections checked - Combustion analysis performed - Gas pressures/manifold pressure ver