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ErrorLib — Industrial Fault Code Library

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aborted by ENTER

DCS Aborted By User

Otis · GAA21750AK3 Service Tool

What does aborted by ENTER mean?

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.

Common Causes

  • Operator manually pressed the ENTER key to interrupt the ongoing Door Check Sequence.
  • This may occur during troubleshooting, testing, or due to an oversight.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Confirm if the DCS was intended to be aborted.

  2. 2

    If a complete Door Check Sequence is required for normal elevator operation, restart the sequence from the service tool menu (SETUP > DCS Run).

  3. 3

    Review operational procedures for DCS execution to prevent accidental termination.

Browse all codes in this manual (15)
Verified technical data. Last updated: April 2026

Related Faults

-Selftest Not Successfully Finished000RSL Parity Error Count0400 RSL parityRSL Parity Error
Source: Otis GAA21750AK3 Service Tool
Open Manual (Page 55)Search more codes in this manual