Applicable Systems
ThyssenKrupp Control System

Symptoms

Re-leveling SR (safety relay) feedback fault - code 2D 00

Possible Causes

  • SR relay not providing feedback during re-leveling
  • relay contact fault

Troubleshooting Steps

  1. Step 1: Check SR relay feedback
    Verify the fault is resolved after completing this step.
  2. Step 2: inspect relay contacts
    Verify the fault is resolved after completing this step.
  3. Step 3: replace relay if faulty
    Verify the fault is resolved after completing this step.

How to Reset

Power cycle after relay check

Related ThyssenKrupp Fault Codes

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Source: beijiaxin.cn; zhihu.com/p/577262471; renrendoc MC2-C manual

Category: Elevator

Published: 2026-10-29