Whirlpool Washer - F33 Error Code

Pump drive system error.

Meaning

Pump drive system error.

The F33 error indicates that the washer’s control board cannot properly drive or monitor the drain pump. Whirlpool Cabrio, HE wand Duet-Front load washers use a dedicated pump circuit that monitors current draw and pump speed. If the pump fails to start, draws too much current, or does not respond to control signals, the washer triggers F33. This error is often caused by pump motor failure, wiring issues, or a failing control board.

Symptoms

  • Washer does not drain
  • Pump hums but does not spin
  • F33 appears during drain
  • Cycle stalls before spin

Causes

  • Failed drain pump motor
  • Loose or damaged wiring harness
  • Blocked pump impeller
  • Control board pump driver failure
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Step-by-Step Fixes

  • Inspect the pump wiring harness.
  • Check the pump impeller for obstructions.
  • Test the pump motor for proper resistance.
  • Replace the pump if it does not run.
  • Replace the control board if pump tests good but F33 persists.
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Safety Notes

  • Disconnect power before accessing the pump.
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Applicable Models

Show Models
  • WTW6200VW
  • WTW6300WW
  • GHW9100LW
  • GHW9150PW
  • WFW9200SQ
  • WFW9400SW
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Related Pages

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Other Whirlpool Washer Error Codes

Show All Error Codes

Model-Specific Notes

On early Cabrio models, the pump driver circuit on the control board is prone to overheating, leading to recurring F33 errors. On Duet models, the pump driver circuit on the CCU is prone to overheating, leading to recurring F33 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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