Removed and cleaned and reinstalled flame sensor Removed and cleaned and reinstalled gas burners Checked gas outlet pressure Checked igniter Checked filter Inspected and tested inducer motor and blower motor Checked your condensate drain trap Furnace working at this time Pulled blower and inspected secondary heat exchanger There is a water leak from the back of the inducer assembly- recommendation is a new gasket Primary heat exchanger in burner 1 and 2 show excessive wear and will need yearly inspections System is 20 years old, average life expectancy is 14. Office to set up new furnace appt..