E20 displayed; machine reports a problem with the wash tank level sensor.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Defective electronic level sensor, Blocked level chamber, Damaged wiring to sensor, Incorrect sensor calibration

Safety first: Isolate power and allow water to cool.

Clean level chamber: Remove filters and clean the area around the level sensor thoroughly to remove grease and limescale.
Inspect sensor body: Check for cracks or signs of water ingress into the sensor housing.
Check wiring: Ensure the connector is firmly seated and the cable is not damaged.
Replace sensor: If E20 persists after cleaning, replace the tank level sensor with the correct Winterhalter part.

Hard 4/5

Electronic Tank Level Sensor

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