Schindler 9300

Escalator keeps shutting down with a 14 code which I know is the e stop button. Both stop buttons are fine I replaced them with new anyone have any ideas does another switch throw a 14 code as well?

We have seen the wiring for the stop switch intermittently rub and open the circuit.

Thanks, ended up just following the wiring back to the controller and just re seating everything and it worked…. Better lucky than good