Upon inspection, the water valve of the KitchenAid refrigerator was found to be the source of the leak. I began by turning off the refrigerator and disconnecting the water supply line. Next, I removed the back panel of the refrigerator to access the valve. Using the appropriate tools, I carefully detached the old valve and inspected the surrounding area for any damage or wear. I then installed the new valve, ensuring it was securely connected and properly aligned. After reassembling the refrigerator, I tested the water dispenser to confirm the leak was resolved. The refrigerator was then returned to its original position, and the water supply line was reconnected. The customer was informed of the successful repair and advised on proper maintenance to prevent future issues.