Dishwasher will not fill with water; cycle starts then stops with E1 on display and audible beeps.

Safety first: Disconnect the dishwasher from mains power and close the water supply tap before working on hoses or internal parts.

• Check household water supply: Ensure the under-sink tap feeding the SMEG dishwasher is fully open. Verify there is normal water pressure at the kitchen tap.
• Inspect inlet hose routing: Pull the dishwasher out slightly and check that the inlet hose is not kinked, crushed, or pinched behind the cabinet.
• Clean inlet hose filter: Close the water tap, unscrew the hose from the tap or aqua-stop box, and remove the small mesh filter. Rinse under running water to remove limescale or debris, then reinstall.
• Check aqua-stop box (if fitted): If your SMEG uses an aqua-stop inlet hose, inspect the plastic box at the tap end for signs of leakage or burning. If the box is swollen, cracked, or buzzing loudly, the aqua-stop valve may be defective and should be replaced as a complete hose assembly.
• Reset and test: Restore water and power, then run a short program. If E1 returns quickly, the inlet valve, flow meter, or pressure switch may be faulty and should be tested and replaced by a qualified technician.