Open the water tap and inspect all joints for leaks.

Plug the dishwasher back in and run a short fill cycle to confirm it takes in water properly and no leaks are visible.

If you notice any drips, turn off the water and re-tighten the fittings.

If the machine still fails to fill, recheck wiring polarity and valve orientation.

As a safety measure, always close the water tap when leaving home for an extended period to prevent potential flooding.