Dishwasher shows E17, often associated with excessive foaming or unusual water level behavior.

Safety first: Disconnect power if there is risk of overflow.

• Check detergent: Ensure only commercial dishwasher detergent suitable for Electrolux Professional machines is used. Never use hand dishwashing liquid.
• Reduce dosing: Adjust detergent and rinse aid dosing to manufacturer recommendations.
• Rinse out foam: Run one or two empty cycles without detergent to clear residual foam.
• Inspect sensors: If E17 persists with correct chemicals, inspect the foam or level sensor (if fitted) and its wiring. Replace if faulty.