Dishwasher shows F18; cycle may abort during filling or rinsing.

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 flow meter sensor, Loose or corroded connector at flow meter, Damaged wiring harness to control board

Safety: Unplug the dishwasher and close the water tap.

Locate flow meter: On many Miele models, the flow meter is integrated into the side water intake matrix or softener assembly.
Check connections: Inspect the small plug and wiring at the flow meter. Clean any corrosion and reseat the connector.
Visual inspection: Look for cracks or water ingress around the sensor housing.
Replace if needed: If wiring is intact and F18 recurs, replace the flow meter or the complete water intake module according to the service documentation.

Hard 4/5

Flow Meter Sensor

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