We may have found other answers which could help you.
Click here for Stannah 420 Lift
How can i find?
where is the winding handle housed when not in use on a stannah stair lift?
Stannah 420 batteries?
420stannah stair lift goes up a few feet &stops?
How to stop the 'beeping?
Stannah 260 stopping after couple of metres ... help!?