F3E2 Turbidity sensor error - wash water clarity

minor

The Whirlpool F3E2 error code on your dishwasher indicates: Turbidity sensor error - wash water clarity. This typically requires troubleshooting the turbidity system.

Whirlpool Dishwasher Affects 1 model

What Causes Error F3E2

high likelihood #1

Turbidity/soil sensor dirty

The optical sensor that measures water clarity is coated with grease or film.

medium likelihood #2

Sensor wiring issue

The connection to the turbidity sensor is loose or damaged.

medium likelihood #3

Sensor failure

The optical sensor itself has failed and needs replacement.

How to Fix Error F3E2

  1. Step 1: Clean the sensor

    Locate the turbidity sensor (usually at the bottom of the dishwasher tub, near the sump). Clean it with a soft cloth and vinegar to remove grease film.

  2. Step 2: Run an empty hot cycle with vinegar

    Place a cup of white vinegar on the top rack and run a hot cycle empty. This cleans internal residue that may be affecting the sensor.

  3. Step 3: Check wiring connections

    Unplug the appliance and check the sensor's wire connector for corrosion or looseness.

  4. Step 4: Replace the sensor

    If cleaning doesn't help, the sensor may need replacement. It's usually held by one screw at the bottom of the tub.

Parts You Might Need

If troubleshooting doesn't resolve error F3E2, you may need to replace one of these parts:

Turbidity Sensor

sensor $15-$40
Find on Amazon PartSelect

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When to Call a Professional

If the sensor has been replaced and the error continues

  • May indicate a main control board issue
  • Persistent water quality issues may have another root cause

Video Repair Guides

Watch a repair walkthrough for this error code on YouTube:

▶ Search YouTube for "Whirlpool dishwasher error F3E2 fix"

Models Affected

This error code has been reported on the following Whirlpool dishwasher models:

WDT750SAKZ