Kenmore Washer - F28 Error Code

Communication error between control boards.

Meaning

Communication error between control boards.

The F28 error indicates that the washer’s main control board and motor control board are not communicating properly. Kenmore explains that this code appears when the serial data link is interrupted due to wiring issues, loose connectors, or failing control boards.

Symptoms

  • Washer stops mid‑cycle with F28 displayed
  • Washer will not start
  • Intermittent clicking or relay chatter
  • Cycle freezes randomly

Causes

  • Loose wiring between CCU and MCU
  • Corroded connectors
  • Failing motor control board
  • Failing main control board
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Step-by-Step Fixes

  • Reseat all wiring harnesses between boards.
  • Inspect connectors for corrosion.
  • Replace the motor control board if communication fails.
  • Replace the main control board if issue persists.
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Safety Notes

  • Disconnect power before accessing internal components.
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Applicable Models

Show Models
  • Kenmore HE3: 110.42822200
  • Kenmore HE3t: 110.44932200
  • Kenmore HE4t: 110.45081400
  • Kenmore HE5t: 110.47081600
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Related Pages

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Other Kenmore Washer Error Codes

Show All Error Codes

Model-Specific Notes

F28 is closely related to F11 and often indicates early control board failure.

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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