GE Washer - E21 Error Code

The washer detected slow drain flow.

Meaning

The washer detected slow drain flow.

The GE E21 error code indicates that the washer’s drain flow sensor measured flow below the minimum threshold. This is similar to E20 but specifically indicates slow flow rather than inconsistent flow.

Symptoms

  • Washer drains slowly
  • Cycle extends or pauses
  • E21 appears in SmartHQ diagnostics

Causes

  • Clogged drain hose
  • Weak drain pump
  • Pump filter blockage
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Step-by-Step Fixes

  • Clean the pump filter.
  • Inspect the drain hose.
  • Test the drain pump for proper output.
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Safety Notes

  • Disconnect power before servicing pump components.
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Applicable Models

Show Models
  • GE GFW850
  • GE GFW650
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Related Pages

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Other GE Washer Error Codes

Show All Error Codes

Model-Specific Notes

E21 is the most common SmartHQ drain error on UltraFresh models.

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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