hello im new to the motorhome scene and just bought a swift sundance 630l 2004 in really good condition checked everything from damp to cocker fridge freezer ect ect but the water pump doesnt seem to be working the people i bought this from were a elderly couple who bought it from discovery liesure in chorley does anyone know what could be the problem ie fuses or does the pump need replacing and if so how much would it cost thanks