water reservoir 15 is relatively increased to the level t as shown in fig4 and in the absence of the lid member 20 the water level in the measuring vessel 16 would reach the level t in fig4 and exceed the predetermined level s however in the present invention the water level in the measuring vessel 16 is regulated by the lid member 20 so as not to exceed the predetermined level s as a result as in the case where the receptacle assembly 17 is disposed without any inclination the pump 27 is operated to supply the ice tray with a proper amount of water in accordance with the above described embodiment even when the receptacle assembly 17 is assembled in the inclined state or when the refrigerator is disposed so as to be inclined rearward the amount of water supplied to the ice tray 8 is fixed accordingly since the water level in the ice tray 8 is prevented from increasing in excess of the sections partitioned by the partition walls 8a the part of water in excess of the sections is prevented from being made into a plate shaped ice which is difficult to be removed at the partition walls.