Why does my dishwasher have water in the bottom and how can I fix it?

Your dishwasher may have water in the bottom due to a clog in the drain hose or filter, a malfunctioning pump, or a faulty water inlet valve. To fix it, try cleaning the drain hose and filter, checking for any obstructions, and ensuring the pump and water inlet valve are working properly. If the issue persists, consider contacting a professional for further assistance.