Bosch Washer - Er:23 Error Code

The washer detected a software or control module error.

Meaning

The washer detected a software or control module error.

The Bosch Er:23 error code indicates a software-related malfunction in the control module. This may occur due to corrupted firmware, voltage spikes, memory errors, or internal communication faults. On older Bosch washers, Er:23 can also appear after power outages or unstable electrical supply. In some cases, the washer may recover after a reset, but persistent Er:23 typically requires control board replacement.

Symptoms

  • Washer will not start or complete cycles
  • Er:23 appears immediately after powering on
  • Buttons become unresponsive
  • Washer freezes mid-cycle

Causes

  • Corrupted firmware
  • Control board memory fault
  • Voltage spike or brownout
  • Loose internal connectors
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Step-by-Step Fixes

  • Unplug the washer for 10 minutes to reset the control board.
  • Check internal wiring harnesses for loose connections.
  • Ensure the washer is connected to a stable power source.
  • Replace the control module if the error persists.
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Safety Notes

  • Do not attempt to reflash firmware without proper equipment.
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Applicable Models

Show Models
  • WFL2060
  • WFR2460
  • WFMC3301
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Related Pages

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Other Bosch Washer Error Codes

Show All Error Codes

Model-Specific Notes

On WFR models, Er:23 is often triggered by voltage fluctuations during storms or outages.

Disclaimer

The information provided on this page is for educational and informational purposes only. Repairs involve electrical, mechanical, and water-related risks. Always follow manufacturer instructions and consider contacting a qualified technician for diagnosis or repair.

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