Cleaned & checked condensing gas furnace. Checked drain. Inspected heat exchanger & flue venting. cleaned burners & flame sensor. Checked voltage & amp draw of motors. Replaced air filter. Cal stat. Clean and check humidifier, replace pad, checked water flow and drain, Air: 900. Stages: 60,80,100%. Total amps: 2.3,3.3,4.8A.