Well this seems to possibly confirm
Time: 3:58
If you have these contacts on yours, it probably means you’ve got a secondary motor in yours and/or these are for those “inteligent sensors”, - if it’s a motor you should measure resistance across the pins, maybe something like 8 ohm (very very approximate) so you’ll wanna check that and makes sure it’s not open or dead short and of course that the contacts are clean and all that
Next youll wanna check it’s each contact has got continuity all the way up the pipe to each respective pin, then you’ll wanna check that you have continuity from those corresponding contacts on the base unit to wherever they go on the mainboard.
If all that checks out, then I’d be testing the presumed motor on a bench supply to ensure it still spins independent of the base unit and go from there