Cleaned & checked condensing gas furnace. Inspected heat exchanger & flue venting. cleaned burners & flame sensor. Checked voltage & amp draw of motors. Test capacitor. Replaced air cleaner media. Clean and check humidifier, replace pad, checked water flow and drain. Blower: 2.5/3.4A . Inducer: 0.26/0.44A . Gas pressure: 1.9/3.6 inches water column. Flame: 12uA. Set humidifier blower speed. Calibrated humidity reading.