Dishwasher shows E10 and may not start the wash cycle; sometimes accompanied by no water intake or immediate drain.

Safety first: Unplug the dishwasher before accessing internal components.

• Check spray arms: Remove and clean upper and lower spray arms. Ensure the feed tubes and nozzles are not blocked by food or limescale.
• Inspect diverter housing: Access the base and locate the diverter valve attached to the circulation system. Check for leaks or physical damage.
• Listen for operation: During a cycle, the diverter should click or hum as it changes water direction. Silence or constant noise may indicate a fault.
• Check wiring: Verify that the diverter motor connector is secure and wires are intact.
• Replace diverter: If the valve is stuck or the motor coil is open-circuit, replace the diverter valve assembly.

Incorrect water distribution can leave dishes dirty; if unsure about base access, contact a professional.