I was doing cat 1 and smoke testing on a 2 car bank of Otis 411 a few days ago, and we triggered the smoke both cars recalled but would not reset through the key switch after the fire panel was cleared. In the end I had to clear the pf ram through the service tool to clear fire recall. fire service through the lobby key switch works phase 1 & 2 and resets properly the issue seems isolated to the smoke initiation. Im sure I’ll be sent back at some point to diagnose if anyone has any ideas of where to start they’d be appreciated i don’t have much in write ups on these.