08-04-2013, 12:01 PM
I don't believe they have an "off" position. If you turn it all the way to the left it won't come on until the bay reaches 0 degrees. Those are installed to keep the water bay from freezing. If it is set all the way to the right it will come on at 50 degrees. That is the max you can set it.
Steve Bare
1999 Newell 2 slide #531