F85 displayed; salt reservoir or water softener system may not function correctly.

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 regeneration valve, Blocked brine line, Faulty softener sensor, Wiring fault to softener valve

Safety: Disconnect power and avoid spilling salt into the cabinet.

Check salt level: Ensure the salt reservoir is filled with proper dishwasher salt and the cap is sealed correctly.
Inspect for blockage: Access the side water softener assembly and check for salt bridging or hardened deposits. Carefully break up and remove solidified salt.
Test valve: Measure the resistance of the regeneration valve coil and inspect wiring.
Replace components: If the valve or sensor is faulty, replace the affected part according to Miele specifications.

Hard 4/5

Water Softener Regeneration Valve

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