Whirlpool Washer - F23 Error Code

Heater failure detected.

Meaning

Heater failure detected.

The F23 error indicates that the washer’s heating element or temperature regulation system is not functioning correctly. Whirlpool Duet washers use a heater to maintain water temperature during certain cycles. If the control board detects that the heater is not drawing current, is shorted, or is not raising water temperature as expected, the washer triggers F23. This error is common when the heater burns out, wiring becomes loose, or the temperature sensor fails.

Symptoms

  • Washer stops mid‑cycle
  • Water does not heat during sanitize or hot cycles
  • F23 appears during wash
  • Cycle takes longer than normal

Causes

  • Failed heating element
  • Loose or damaged wiring harness
  • Faulty temperature sensor
  • Control board heater relay failure
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Step-by-Step Fixes

  • Test the heating element for continuity.
  • Inspect wiring harnesses for heat damage.
  • Test the temperature sensor with a multimeter.
  • Replace the heater or sensor as needed.
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Safety Notes

  • Disconnect power before accessing the heater assembly.
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Applicable Models

Show Models
  • GHW9150PW
  • GHW9400PW
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Related Pages

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Other Whirlpool Washer Error Codes

Show All Error Codes

Model-Specific Notes

On Duet models, the heater is mounted at the bottom of the tub and is prone to mineral buildup, which can cause overheating and F23 errors.

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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