Kitchenaid Refrigerator Superba

Question

The water dispenser is leaking and filling a glass of water every 20 minutes (constant drip). Also, water is leaking from the ice maker inside into the ice cube holder then freezing. One expert said it might be the fill valve. What is the part number I need and is it easy to install. Thank you for your help....KitchenAid Superba side by side (manf. 10/00)(Model KSRB25FHSS04)