How to Fix / Troubleshooting

Safety first: Disconnect power before accessing the sump area.

Step-by-step checks:

Locate turbidity sensor: On some Vestel models, an optical turbidity sensor is mounted on the side of the sump or in a side chamber.
Clean sensor: Remove the sensor and clean the optical window with warm soapy water. Remove any film, grease, or scale that could block the light path.
Inspect wiring: Check the connector and harness for moisture, corrosion, or broken wires. Dry and reseat the connector.
Test sensor: If available, compare sensor readings with service mode diagnostics. If the sensor is out of range or not detected, replace it with a Vestel-compatible turbidity sensor.

Reassemble and run an auto or sensor-based program to verify that E11 does not reoccur.

Dishwasher displays E11; may be associated with turbidity or water quality sensing issues.

Possible Causes