Came out today for a Rheem furnace that had a stinky smell. Model #RGLS-07EAUER, serial #F171404290. I inspected the system to see if I could find the source of the smell. The return and supply ducts are clean. The filter is cleaned as well. The blower motor and blower wheel are clean as well. The smell seems to be coming from the room that the system is located in. The system is pulling the smell from the room and putting it in the duct work. Collecting for diagnostics only.