I took a long road trip and during the road trip my panel fans quit working. It does not work on cool or heat. The defrost, floor, and combo modes all work just not the panel mode. They all blow cold air when I have it on AC. I have no idea how to fix this. Also it works on all speeds and does NOT make any funny noises or anything like that. When I have it on panel mode it just blows the air out the dash and floor.