Dishwasher shows E18 and stops early in the cycle, often with very little water inside.

Safety first: Disconnect power and close the water tap.

• Inspect water matrix: Remove the side panel and examine the transparent water distribution matrix for limescale or debris. Clean or replace if heavily fouled.
• Check flow meter wiring: Ensure the small sensor on the matrix is firmly connected.
• Clean inlet filters: As with other fill errors, clean the inlet hose filters.
• Test fill: After reassembly, run a quick cycle and check that the water level reaches just above the filter area. If still low, replace the inlet valve or matrix/flow meter assembly.

Persistent E18 after component replacement may indicate a control board fault requiring professional diagnosis.