Perform maintenance on carrier gas fired furnace with steam humidifier: - Shut power to the furnace - Removed furnace cabinet door and blower cabinet door - Removed flame sensor and hot surface igniter - Cleaned flame sensor with copper bristle brush - Inspected hot surf igniter- showing heavy wear and replacement is recommend recommended - Vacuum and brushed all burner jets, clean and clear - Vacuum and dusted furnace cabinet and components - Vacuum and dusted blower cabinet and components - Secured and inspected all electrical wiring, and connections - Inspected blower motor wheel and assembly - Blew out and vacuumed electrical clean clear - Reassemble all components into furnace and secure connections - Inspect flue piping to chimney breach- okay - Return power to furnace - Call for cooling on the thermostat: the indoor blower and outdoor condenser are on and running: perform powder cloud test on heat exchanger- no blow back - Stop for cooling - Drain the existing steam humidifier