Perform maintenance on Trane gas fired Furnace: * Replaced and dated customer provided 16 x 25 by one air filter * Shut power to equipment * Removed furnace and blower cabinet door doors * Remove burner cabinet door * Remove flame sensor, Hot surface igniter and all burner jets * vacuumed and brushed all burners clean and clear * cleaned flame sensor with copper bristle brush and polished with steel wool * inspected hot surface igniter- almost 6 years old and showing signs of ware * vacuumed and dusted out burner section on furnace * cleaned debris from fresh air intake * flushed condensate tubing and trap on furnace- Hot water flowing through neutralizer kit into condensate pump * Tested condensate pump and discharge line multiple times to ensure normal operations and no leaks * Neutralizer minerals were recommended to be replaced, but customer does not want to move forward at this time * preform powder cloud test on heat exchanger- ok no blow back * reassemble furnace and component