Oh my goodness, do I EVER need a manual for this "window type" HAIER Air Conditioner! There doesn't seem to be an internet listing of this models' number online. Maybe that's because it might be too old to get the consideration the LISTED models seem to get. I just do not know. And trying to "logic" my way through pressing first this button, then that one, then maybe another one does no good. Perhaps this models' logic disappeared when it became old?