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Source-backed error-code guide

Reviewed

KitchenAid Dishwasher F6 E3 Error Code

KitchenAid identifies F6 E3 with excessive suds. Hand dish soap, laundry detergent, too much automatic-dishwasher detergent, or a rinse-aid spill can create foam that interferes with filling and normal operation.

Applies to KitchenAid dishwasher using the documented F/E or H2O display family

What the appliance detected

Detected condition

The dishwasher sensing system detected excessive suds.

What may contribute

Possible causes

  • The wrong detergent was used, such as hand dish soap or laundry detergent.
  • Too much automatic-dishwasher detergent was added.
  • Rinse aid may have spilled or the dispenser cap may not be secured.
  • A persistent sensing or fill problem may need service if the code returns after suds are eliminated.

Start conservatively

Safe preliminary checks

Work in order and stop whenever a step is not supported by the documentation for your model.

  1. Stop and verify that suds are present

    • Wait for the dishwasher to stop before opening the door.
    • Look for unusual foam or bubbles and record F6 E3 plus the model number.

  2. Remove excess foam without chemicals

    • Scoop out accessible suds with a plastic cup if practical and wipe up any obvious rinse-aid spill.
    • Do not add household drain cleaners, bleach mixtures, or improvised anti-foam chemicals.

  3. Run a detergent-free cleanup cycle

    • Remove dishes and run a full cycle with no detergent if the KitchenAid instructions for the model permit it.
    • Afterward, use only automatic-dishwasher detergent in the amount appropriate for the water and load.

  4. Watch for a returning code

    • If F6 E3 returns after the foam source is corrected, request service.
    • A repeated code without visible suds may require sensing or fill diagnosis.

Actions not recommended

  • Do not use hand dish soap, laundry detergent, or drain chemicals in the dishwasher.
  • Do not remove panels to inspect sensors, valves, or wiring.
  • Do not replace a sensor or control from F6 E3 alone.

When to stop and request service

  • F6 E3 returns after the detergent problem and visible suds are fully corrected.
  • Foam or leaking continues despite correct dishwasher detergent use.
  • Internal sensing, valve, pump, wiring, or control diagnosis is needed.

Documented source

Official information reviewed

Our summary is based on manufacturer support material and stays within the limits of that material.

Source reviewed by Appliance Help HQ: September 23, 2026.

Appliance Help HQ is an independent informational site and is not affiliated with or endorsed by KitchenAid.

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