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ErrorLib — Industrial Fault Code Library

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Steady red

Internal Module Fault / Over Temperature

Allen-Bradley · Compact 5000 I/O Analog Modules

What does Steady red mean?

An issue internal to the module has occurred, such as a nonrecoverable fault, a calibration fault, or an over-temperature condition. This indicates a critical problem within the module hardware or firmware, affecting its operation and potentially requiring module replacement or environmental correction.

Common Causes

  • Nonrecoverable internal module fault detected.
  • A calibration fault occurred on the channel.
  • Module operating above its specified ambient temperature range.
  • Incorrect current levels applied to the module, potentially causing overheating.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    If the indicator is steady red following initial power-up and remains, replace the module.

  2. 2

    If a calibration fault occurred, cycle power to the module to return the channel to its factory calibration setting.

  3. 3

    Check the ambient temperature at the module installation location and lower it if it exceeds specifications.

  4. 4

    Verify the applied current levels to the module meet specifications (refer to publication 5069-TD001).

Browse all codes in this manual (33)
Verified technical data. Last updated: April 2026

Related Faults

Alternating yellow/redCalibration In ProgressCJChxx.FaultCold Junction Data Fault (5069-IY4, 5069-IY4K)CJChxx.FieldPowerOffCold Junction Field Power Off (5069-IY4, 5069-IY4K)
Source: Allen-Bradley Compact 5000 I/O Analog Modules
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