F33
KitchenAid Pump Drive or Drain System Error

Washer displays F33 and may not fill or may abort cycle shortly after starting.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Failed drain pump, open pump winding, wiring fault between pump and control, control triac failure

How to Fix / Troubleshooting

Safety First: Unplug the washer and be prepared for water when accessing the pump.

Step-by-step checks:

  • Test pump: Disconnect the pump and measure resistance across its terminals. Compare to spec (typically 10–40 Ω). Infinite or very low resistance indicates a bad pump.
  • Inspect wiring: Check the harness from the pump to the main control for damage or loose connectors.
  • Control output: During a drain command (live test only if qualified), verify that the control sends voltage to the pump.

When to replace: Replace the drain pump if its winding is open/shorted or if it does not run with proper voltage. If the pump and wiring are good but no voltage is sent, replace the main control.

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Repair Difficulty

Medium 3/5

Required Part

Drain Pump Assembly
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