Schindler · Altivar 312 Drive
The ATV12 remote display terminal has detected an anomaly in its Read-Only Memory (ROM), typically identified through a checksum calculation failure. This indicates a potential hardware issue with the terminal's firmware storage.
Click steps to track your progress.
Attempt to power cycle the ATV12 remote display terminal by disconnecting and reconnecting it.
If the anomaly persists, replace the ATV12 remote display terminal.