Cleaned & checked condensing gas furnace. Inspected heat exchanger & flue venting. cleaned burners & flame sensor. Checked voltage & amp draw of motors. Test capacitor. Checked drain. Tighten Ferncos. Tighten collector box plug. Found secondary heat exchanger dripping water! Blower: 5.5A. Inducer: 0.61A,122Hz . Temperature rise: 60 . Supply: 127 . Return: 67 . Suggestions: Replace air filter soon. Replace heat exchanger. Need to schedule.