There was a lot of discussion on the Ford controllers a year or so ago over on RV.net. As stated, the early controllers would not operate below a certain speed. This was the way it was designed, not a defect. Ford later changed the controller to correct this (my 2007 works correctly). There were some people who were persistent enough to get Ford to replace their early controller. The key was to bring up the 'safety issue".
Ken
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