Cleaned & checked modulating condensing gas furnace. Inspected heat exchanger & flue venting. cleaned burners & flame sensor. Checked voltage & amp draw of motors. Min/max: System: 0.95/5.0A . Inducer: 0.38/0.59A. Temperature rise: 60 . Blower: 1375cfm. Flame: 13uA. Setup for 3 stages.