A refrigerator which comprises: a storage compartment, a door to open and close the storage compartment, a storage tank in the storage compartment, the storage tank being provided to store water supplied from an external water supply source, and a dispenser, having a case connectable to the storage tank, to discharge water stored in the storage tank while the case is connected to the storage tank, the dispenser being attachable to and detachable from a rear surface of the door facing the storage compartment.

A cooler assembly includes an insulted main container and a pump assembly configured to pump contents of the main container through a tube to a spigot. An electronic control board includes a pressure-sensing switch that senses pressure differentials or fluid movement when the spigot is opened and closed, causing a triggering event. Triggering events are used to activate and deactivate the pump to dispense fluid from the main container.

In one embodiment, a refrigerator comprises a plurality of ice makers configured to generate ice, a valve part configured to adjust a supply of water to each of the plurality of ice makers, and a controller configured to control the valve part, and when receiving a request for a supply of water to an ice maker of higher priority while water is supplied to an ice maker of lower priority, the controller controls the valve part to cut off the supply of water to the ice maker of lower priority and supply water to the ice maker of higher priority.