What causes a turbidity sensor to fail?

Turbidity sensors can fail due to wear over time, mineral buildup from hard water, or electrical issues. Food debris or foreign objects can also obstruct the sensor's operation, leading to inaccurate readings or complete failure.

Can I clean a turbidity sensor instead of replacing it?

Cleaning a turbidity sensor might resolve issues caused by debris or mineral buildup on its surface. However, if the internal components are faulty or the sensor is electrically damaged, cleaning will not fix the problem, and replacement will be necessary.

Where is the turbidity sensor located in a dishwasher?

The turbidity sensor is typically located in the sump area at the bottom of the dishwasher tub. It is usually integrated into the water intake or drainage system, positioned to monitor the cleanliness of the wash water as it circulates.

Dishwasher Turbidity Sensor Repair & Replacement Guide

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Bosch 00611323 Dishwasher Turbidity Sensor

The 00611323 Turbidity Sensor is a genuine Bosch OEM replacement part.
The Bosch Turbidity Sensor is also called the Aquasensor and is for Dishwashers.
The Dishwasher Turbidity Sensor detects soil level in the water and sends the information to the control board.
The Bosch 00611323 replaces part numbers of: 00611567, 00611568
It is recommend to reference your appliance service manual or the manufacturer of your appliance to validate the correct part number for your appliance.

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What the 00611323 does

The turbidity sensor detects the level of soil in the wash water. This information helps the dishwasher determine the appropriate cycle length and water usage.

Symptoms when this part fails

Dishes are not getting clean
Dishwasher runs excessively long cycles
Dishwasher stops mid-cycle
Dishwasher displays an error code related to water sensing
Water does not drain properly

Compatibility

Fits the Bosch family. Specifically:

Any unit originally equipped with OEM part number(s): 00611323.
Check the model/rating plate inside your appliance and compare it against the fitment table on the product listing before ordering — this guide does not list specific compatible models because Amazon does not provide verified fitment data through this pipeline.

Tools you'll need

Screwdriver (Phillips or Torx)
Pliers
Towels
Bucket

Difficulty: Moderate · Time: 30-60 minutes

How to install the 00611323, step by step

Disconnect power to the dishwasher at the circuit breaker.
Shut off the water supply to the dishwasher.
Remove the lower dish rack and spray arm.
Locate and access the turbidity sensor, typically in the sump area at the bottom of the tub.
Disconnect electrical wiring and any associated hoses from the old sensor.
Carefully remove the old turbidity sensor from its housing.
Install the new sensor, ensuring all connections are secure.
Restore water and power, then run a test cycle to verify operation.

Related troubleshooting

If swapping this part doesn't fix the issue, check these next:

What is a Dishwasher Turbidity Sensor and How it Works