How can I mend my Sherbourne electric chair?

Presumably the last successful action was when you bought the chair down "on the white button".

I wonder if the chair is plugged in properly, the wall outlet switched on,the cables are all intact and the power supply is OK.

If there's a backup battery, make sure that's OK. If I was designing a chair, I'd allow it to return to reset position but nothing more in the event if no supply and backup battery running low.

It's possible the power supply is off/disconnected/failed or otherwise not working and you've been running on backup battery.

Otherwise, I'd be closely examining cables for wear, tear, cracks (especially where cables enter housings)


Shsbsv
January 2022