The majority of the components on your dishwasher are accessed through the lower kick panel, which is located on the bottom-front portion of your dishwasher. The lower kick panel is secured using screws, and pulls straight off of the appliance. Before removing the panel, it is important that you disconnect the dishwasher's power supply.
The dishwasher's water supply is provided by a water supply hose. The water supply hose connects from the water supply valve to the water inlet valve, and is commonly constructed of braided steel or rubber. It is not uncommon for the water supply hose to develop leaks at the connectors as it ages, especially rubber hoses. To repair the leak, the best course of action is to replace the hose.
The water inlet valve is the connection at which the water supply hose connects to the dishwasher. There are two styles of inlet valves, new and old, the latter of which is identified by a brass elbow at the base of the valve. The brass elbow on your old-style water inlet valve must be wrapped with plumber's tape, and the valve can leak if this tape is missing or has worn down. New-style water inlet valves have a rubber washer inserted inside of the connector on the water supply line, and if the washer is damaged or missing, the connection may leak.
The water inlet valve has a water hose connected to its rear that may come loose over time. To access the hose, you must remove the screw or screws securing the water inlet valve to the dishwasher frame. Once the hose is accessible, ensure that the hose is securely connected, and that the squeeze clamp is securely connected to the inlet valve.