One of the most common cause of the ice on the freezer floor is a blocked drain under the evaporator coils. Use a hair dryer to defrost it. Run some hot water through the drain using a turkey buster. Make sure the other end of the drain (at the back of the refrigerator) is not blocked either.
In regards of the ice maker problem check if the ice maker fill tube in the freezer ceiling is not blocked with ice.
Last edited by Gene : 09-21-2012 at 08:24 PM.