Cleaned & checked gas furnace. Inspected heat exchanger & flue venting. cleaned burners & flame sensor. Checked voltage & amp draw of motors. Test capacitor. Set speeds. Checked filter. Customer serviced humidifier. Blower: 3.0/3.8A . Inducer: 0.09/0.24A . Gas pressure: 1.9/3.6inches water column. Temperature rise: 50/60 . Supply: 126/136 . Return: 76.