Whirlpool Washer - SUD Error Code

Excessive suds detected in the washer.

Meaning

Excessive suds detected in the washer.

The SUD error indicates that the washer has detected excessive suds inside the drum. Whirlpool washers use a combination of pressure sensor readings and motor feedback to determine when foam levels are too high for proper rinsing. Excessive suds can prevent the washer from spinning, cause long drain times, and reduce cleaning performance. SUD is functionally identical to F0 E2 on many Whirlpool models, but appears as a text code on certain platforms.

Symptoms

  • Washer stops mid‑cycle
  • Visible foam inside the drum
  • Washer drains repeatedly without progressing
  • Cycle takes longer than normal

Causes

  • Using non‑HE detergent
  • Using too much detergent
  • Detergent residue buildup
  • Blocked pressure hose causing false suds detection
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Step-by-Step Fixes

  • Run a Rinse & Spin cycle to clear excess suds.
  • Use only HE detergent and reduce the amount used.
  • Run a Clean Washer cycle with affresh or similar cleaner.
  • Inspect the drain pump filter for clogs.
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Safety Notes

  • Unplug the washer before accessing the drain pump.
  • Avoid mixing detergent types.
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Applicable Models

Show Models
  • WFW75HEFW
  • WFW85HEFW
  • WFW6620HC
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Related Pages

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Other Whirlpool Washer Error Codes

Show All Error Codes

Model-Specific Notes

On the WFW6620 platform, the washer automatically adds rinse cycles when SUD is detected, significantly extending cycle time.

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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