Completed furnace, maintenance and inspection. I checked amp draws and tested components. I tested airflow and temp splits. I cleaned a flame sensor, spark igniter, and wipe down furnace. Furnace is running within manufacturer specifications. Indoor coil for the AC has bacterial growth growing all over one side of it. The bacterial growth is now starting to grow up onto the coil as well. Best way to take care of that is with a whole home air purification system.