Dishwasher shows E18; typically indicates insufficient water in the machine or very slow filling.

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

Step-by-step checks:

• Verify tap fully open: Ensure the supply valve is fully turned on and not restricted.
• Clean inlet filters: Remove the inlet hose and clean the mesh filters at both ends thoroughly.
• Check hose routing: Make sure the hose is not kinked or crushed behind the cabinet.
• Test inlet valve and flow meter: If filling remains slow, test the inlet valve coil and flow meter as described for E1/E6. Replace any faulty components.

Run a short cycle to confirm that the machine fills to the correct level within the expected time.