Guys, here's the dope on that heater. It is always on. It's an aluminum coil that heats the washer fluid, so when you spray, hopefully, it will melt ice on the nozzles, windshield, etc. I know it circulates all the time, 'cuz mine let go the the fall when it was about 80 degrees outside. As far as I know, you can re-aim the nozzles by inserting a fine diameter wire, (common pin will do) and move the little nozzle orifice around until you get it where you want. A bit of trial and error is required here.