E08 error and the display shows abnormal salt usage or cannot read salt level.

Safety: Disconnect power before working inside the brine tank.

• Access sensor: Remove the brine tank lid. Locate the Hansgrohe salt level sensor or float assembly (often mounted on the brine well or tank wall).
• Clean sensor: Carefully remove the sensor or float. Rinse with warm water to remove salt crust and sludge. Do not use abrasive tools that could damage the probes.
• Check movement: If a float is used, ensure it moves freely along its guide rod. Replace if it sticks or is waterlogged.
• Inspect wiring: Verify that the sensor cable is intact and firmly connected to the control board.
• Refill with proper salt: Use only high-purity softener salt recommended by Hansgrohe. Avoid rock salt with high impurities that can foul sensors.
• Test: Reinstall the sensor, restore power, and confirm that the display now shows a realistic salt level. If E08 persists, replace the salt level sensor assembly.