We may have found other answers which could help you.
Click here for Stannah 420 Stair Lifthow can i fix my moms stannah 420 stairlift?
Removing batteries on stannah 420 stairlift ?
How can i find?
Stannah 260 stopping after couple of metres ... help!?
420stannah stair lift goes up a few feet &stops?
Stannah 400 Remote not working?