i have a 4 stop hydro, a 1989 LRV4 unit, that after a reset will take a call, only travel one floor, then begin buzzing the nudging buzzer immediately after opening the door at the landing. I've thoroughly ensured the safety edge is operational, relay is changing state and giving the reopen signal, but that buzzer behind the COP is howling away.
I thought maybe otis microprocessor uses that same buzzer as an output for a fault? All the i/o's on the microprocessor board appear correct. Any advice would be swell
