Preform maintenance on x1 Carrier infinity gas fired furnace with bypass humidifier: * 6ft ladder needed to access system through x2 ceiling hatch’s * open furnace cabinet doors * shut power to system * removed flame sensor and hot surface igniter- cleaned sensor with copper bristle brush and polished clean with steel wool * inspected hot surface igniter- okay- replaced last season * brushed out and cleaned burner jet, furnace cabinet and components * inspected PVC fresh air and exhaust: okay * secured all electrical wiring and connections in furnace and blower cabinet * inspected blower motor/ wheel and assembly * removed condensate trap- flushed clean and primed with fresh water * removed neutralizer kit- inspected line stone minerals- okay- flushed clean * preform full condensate pump cleaning * reinstalled neutralizer kit, condensate trap and all drainage and tested for leaks- none * replaced air filter and humidifier water panel- open bypass damper * cleaned and flushed humidifie