Im going there now but yes i have checked most RS boards for their adresses, im not fully understanding the RSL parity fault, how can a board change adress after elevator has been running for 20 years. Its a single rope elevator with 9 floors, what i meant is we changed 16 and 17 is we changed the rs14 boards on the car adressed 16 and 17 because they came up in the selftest and i couldnt get the TCI signal to show on rs14 board 16 so elevator wouldnt go away from inspection led, but no diffrence happend after changing them.

The RS board on floor 3 is just the board dragging the bus not the button, i can disconnect it and still if only board is plugged in, fault happends. I havnt tried putting brand new board in, but the odd thing is bus is completely bugged out if i remove the board on floor 3, so even if thats the problem, its not fixed if i remove it.

If i run selftest with everything connected it looks like all of the shaft boards is missing and half or if not most boards on car too, but i cant hold the plug still for too long to do the test while i have it in that position.

in car junction box i have RS14 board with adresses 16,17,20 and behind car panel 4,5,6,7,8 and in shaft 21-29 for buttons, and i have rs18 adressed 60 in the controller that splits the bus to the car

About the "genuine boards" i wish i could say i knew but i would hope so, they are ordered from the most used elevator parts seller in sweden but even they are a bit sometimes not so honest where their parts come from or quality...