Refrigerator

A refrigerator comprising:

• a storage chamber;
• a cooler configured to provide cold;
• a first temperature sensor configured to sense a temperature within the storage chamber;
• a first tray assembly configured to define a portion of a cell which forms a space in which a liquid introduced into the space is phase-changed into ice;
• a second tray assembly configured to define another portion of the cell, the second tray assembly being connected to a driver to contact the first tray assembly in an ice making process and to be spaced apart from at least a portion of the first tray assembly in an ice separation process;
• a liquid supplier configured to supply the liquid into the cell;
• a second temperature sensor configured to sense a temperature in the space;
• a first heater disposed adjacent to at least one of the first tray assembly or the second tray assembly and to supply heat into the cell;
• a second heater configured to supply heat into the cell in an ice making process;
• and
• a controller configured to:
• control the first heater and the second heater to be turned on so that the ice is easily separated from the first and second tray assemblies after completion of the ice making process and before the second tray assembly moves to an ice separation position, and
• wherein, after completion of the ice making process, a degree of attachment between the ice of the cell and the tray assembly is greater in one of the first and second tray assemblies than in the other one of the first and second tray assemblies.