Dishwasher shows E18; typically indicates a filling timeout or no water entering.

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

Steps:

• Verify tap is open: Ensure the supply valve is fully open.
• Check hose: Inspect the inlet hose for kinks or crushing behind the dishwasher.
• Clean filter: Remove the hose from the rear of the dishwasher and clean the mesh filter in the valve.
• Test valve: If still no fill, the inlet valve coil may be faulty and require replacement.

When to call a technician: If you are not comfortable testing or replacing the valve, or if the control board is not sending power to the valve, contact a professional.