Patent ID: 11940200
Assignee: LG ELECTRONICS INC.
Field: Other consumer goods (Other fields)
Classification: CPC F  Y | IPC F

Claim 15:
16. A method for controlling a refrigerator, the method comprising:
performing a first defrosting operation of an evaporator while operating a heater, the evaporator being provided in a case and configured to supply cold air while heat-exchanging with air;
determining, based on a temperature of the evaporator reaching a first temperature, that the first defrosting operation is completed, and turning off the heater;
detecting a pressure differential using a single differential pressure sensor, wherein the pressure differential is a difference between pressures between an inlet for receiving air from a storage compartment and an outlet for discharging air into the storage compartment; and
performing a second defrosting operation as an additional defrosting operation of the evaporator based on the detected pressure differential being greater than a predefined pressure after the first defrosting operation,
wherein the second defrosting operation is operated after the first defrosting operation, and
wherein the second defrosting operation comprises operating the heater until the temperature of the evaporator reaches a second temperature that is different from the first temperature.