Sounds like it’s over travelled! Ultimate switch is a switch in the cluster on the charge pin, the charge pin has a stepped plunger that operates two switches, the slowing switch and the ultimate / over travel switch, hand wind the lift off the charge point and put a call in and see what happens? If no hand winding tool on site? Push on the top of the seat back so that the lift leans back and the charge pin extends, then put a call in
If it has over travelled? Then it will most likely do it again and it needs the slowing ramp or the charge ramp position adjusting to stop it
If the lift now runs I’ll post up how to adjust the slowing and charge ramp
If it doesn’t? We will continue to talk you through the problem till we do have a working lift
