KET-S activated without door close command

Schindler Elevator Medium Elevator

Model: Bionic/3300 | Code: 0312

Applicable Systems
Schindler Control System

Symptoms

KET-S (door lock signal) activated without DOOR_CLOSE/DOOR_LOCK command

Possible Causes

  • Door lock signal detected without command
  • signal wiring error
  • relay fault

Troubleshooting Steps

  1. Step 1: Check KET-S signal wiring
    Verify the fault is resolved after completing this step.
  2. Step 2: verify relay operation
    Verify the fault is resolved after completing this step.
  3. Step 3: inspect door lock circuit
    Verify the fault is resolved after completing this step.

How to Reset

Power cycle after wiring check

Related Schindler Fault Codes

Source: book118 Bionic 3300 diagnostic manual; diantijob.com/175389.html

Category: Elevator