Whirlpool dishwasher — Error Code F6 E3
The wash pump assembly is experiencing cavitation due to trapped air or excessive suds.
What it means
The F6 E3 fault on Whirlpool dishwashers signifies that the main control board has identified an irregular current reading from the wash motor. Specifically, the motor is pulling less amperage than expected, which informs the control board that the impeller is spinning in air or foam rather than water. This process, known as cavitation, prevents the unit from achieving necessary spray pressure. The control system monitors the wash pump motor through the optical water indicator (OWI) sensor and motor current feedback. Sudsing—often caused by using standard liquid dish soap, a leaking rinse aid dispenser, or reactions with heavy protein soils—causes the pump to lose its prime. Furthermore, an upside-down bowl can trap air that releases into the sump, or a failing wash motor or impeller can trigger this specific error.
Likely Causes
- 1 Excessive SudsUsing standard liquid dish soap, non-HE detergents, or dealing with a leaking rinse aid dispenser creates thick foam, which leads to pump cavitation.
- 2 Air in the SumpIf large bowls or pots are loaded incorrectly, they can trap air pockets. As water heats up, this air is pushed into the pump assembly.
- 3 Faulty OWI SensorThe Optical Water Indicator (OWI) sensor tracks water temperature and clarity. If this sensor is dirty or failing, it transmits incorrect data to the control board, causing a false error.
- 4 Failing Wash MotorIf the wash motor bearings wear out or the impeller is damaged, the resulting drop in current draw mimics the symptoms of air or suds cavitation.
How to clear / reset
To attempt to clear the F6 E3 code, press the 'Cancel/Drain' button to force the unit to empty the tub. After it drains, cut power at the breaker for 5 minutes to perform a hard reset on the main control board. If the dishwasher contains suds, you must break them down before restarting. Add 1/2 cup of white vinegar or a thin layer of salt to the foam, allow it to sit for 10 minutes, and then run a 'Rinse Only' cycle. If the error appears again immediately on a subsequent cycle, the OWI sensor or wash motor will likely require professional testing and replacement.
Common replacement parts
When to call a pro
Contact a professional if you have neutralized the suds and reset the unit but the F6 E3 code persists. Distinguishing between a failing wash motor and a defective OWI sensor requires using a multimeter to verify component resistance and performing diagnostic tests via the control board. A-Fix Service provides a $90 diagnostic fee (waived if you move forward with the repair) and includes a 1-year warranty on all parts and labor. We will correctly identify the electrical issue and ensure your dishwasher operates reliably.
FAQs
Is it okay to use a small amount of regular dish soap?
Absolutely not. Even a tiny amount of standard dish soap creates massive amounts of foam in a high-pressure dishwasher, which will trigger an F6 E3 error and potentially cause water to leak onto your kitchen floor.
Will the F6 E3 code reset automatically once the suds dissipate?
Usually, you must run a drain cycle and perform a manual reset by flipping the breaker for 5 minutes. Provided the suds are fully neutralized with salt or vinegar, the code should remain cleared.
What is the typical cost to repair an F6 E3 error?
If the issue is just suds, you can fix it for free. If the OWI sensor is the culprit, repairs are typically $130 to $180. Replacing a failed wash motor generally costs between $250 and $400, including labor.
Can a clogged filter cause this error?
While a dirty filter usually leads to an F6 E4 (float switch) or F6 E1 (low water) code, severe blockages can starve the pump of water, causing the same cavitation symptoms that trigger the F6 E3 error.
Is it safe to continue using the dishwasher while this error is present?
No. Cavitation means the pump is running without adequate water. Operating the wash motor without water lubrication can destroy the pump seals and bearings, turning a minor suds issue into a costly motor replacement.
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