Dishwasher shows E10 and may not fill correctly; salt or rinse aid indicators may behave erratically.

Safety first: Disconnect power and close the water tap before removing side panels.

• Check salt level: Ensure the salt reservoir in the bottom of the tub is filled with dishwasher salt. Do not use table salt.
• Inspect for salt bridging: Open the salt cap and use a non‑metallic utensil to break up any hardened salt bridge that may prevent proper regeneration.
• Access water softener assembly: Remove the left side panel to expose the water softener tank integrated with the side water matrix. Check for heavy limescale or blockages in the softener channels.
• Check softener valve: Locate the small regeneration valve on the softener assembly. Ensure the electrical connector is secure and the valve is not clogged with salt or debris.
• Flush system: If possible, disconnect the softener inlet and outlet hoses and flush with warm water to remove salt deposits.
• Advanced diagnostics: If the error persists, the softener valve or flow sensor may be defective and require replacement. This is often best handled by a professional due to calibration requirements.