I've got two Otis 211 that are duplexed, the first floor hall button just keeps latching a call, I've tried swapping buttons checked wires and plugs, pretty much the basics. If I look on my coco tool it says a 2100 which if I'm reading it right should be a software problem, any thoughts or info on the subject would be great! Also the cars work fine and all the other hall fixtures work and call the elevators, it just continually goes back to the first floor
