We may have found other answers which could help you.
Click here for Simplicity Stairlift GoingMinivator stair lift?
How can I repair my minivator stair lift?
What to do to get error six fixed on minivator stairlift?
How can I mend my Stannah 260 stairlift no green light on?
Stannah 420. 2008?
How can I identify which model I have?