Otis · GAA21750AK3 Service Tool
The Door Check Sequence (DCS) was intentionally terminated by the user pressing the ENTER key on the GAA21750AK3 service tool. This is a user-initiated action and not an equipment malfunction, but it prevents the completion of the safety sequence for the OTIS 2000 Controllers MCS120/MCS220.
Click steps to track your progress.
Confirm if the DCS was intended to be aborted.
If a complete Door Check Sequence is required for normal elevator operation, restart the sequence from the service tool menu (SETUP > DCS Run).
Review operational procedures for DCS execution to prevent accidental termination.