Whirlpool Washer - F15 Error Code

Motor control unit overheating.

Meaning

Motor control unit overheating.

The F15 error indicates that the washer’s motor control unit (MCU) has overheated. Whirlpool Duet washers monitor MCU temperature indirectly through current draw and internal thermal protection circuits. If the MCU overheats due to excessive motor load, restricted airflow, or internal component failure, the washer triggers F15 to prevent permanent damage. This error often appears during long cycles, heavy loads, or repeated spin attempts.

Symptoms

  • Washer stops mid‑cycle
  • Burning smell or excessive heat near the MCU
  • F15 appears during wash or spin
  • Washer refuses to restart until cooled

Causes

  • Overloaded drum
  • Restricted drum movement
  • Failing MCU components
  • Weak motor or binding bearings
  • Poor ventilation around the MCU
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Step-by-Step Fixes

  • Allow the washer to cool for 30 minutes.
  • Inspect the motor and drum for friction or obstructions.
  • Check wiring harnesses for heat damage.
  • Replace the MCU if overheating persists.
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Safety Notes

  • Disconnect power before accessing the MCU.
  • Do not run the washer if burning smells are present.
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Applicable Models

Show Models
  • GHW9100LW
  • GHW9150PW
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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 MCU is mounted low in the cabinet, making it vulnerable to overheating if airflow is restricted by lint or debris.

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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