Dishwasher shows E12 and may have issues with water softening or salt usage, often accompanied by white spots on dishes.

Safety first: Disconnect power and avoid spilling dishwasher salt inside the tub; it is corrosive.

• 1. Check salt level: Open the salt reservoir cap and ensure it is filled with dishwasher salt (not table salt). Refill if empty and wipe away any spilled salt.
• 2. Inspect for salt bridging: Use a non-metallic tool to gently break up any hardened salt bridge inside the reservoir that could prevent proper regeneration.
• 3. Access regeneration valve: Remove the side panel to access the water softener and regeneration valve. Check the valve coil for continuity and ensure the wiring connector is secure.
• 4. Clean brine chamber: If accessible, flush the brine chamber and related hoses with warm water to remove salt deposits.
• 5. Replace faulty components: If the valve coil is open or the softener sensor is defective, replace the regeneration valve or the complete water softener assembly as required.