Hi my name is Kevin i work at a hotel and we have all Allstar vacuums there. They are the Javelin 12x type and one Javlin 18 . I am not sure where the modle No. is at. The problem we are having is they will work of a while then they quit. I have changed the bag and cleaned the filter but they still are quiting the change bag light is always on red. But it seems that if you use the hose it work good. so i was wondering if you could give me an idea what might be the problem with them.