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

Claim 0:
1. 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,
wherein the second defrosting operation comprises operating the heater until the temperature of the evaporator reaches a second temperature that is greater than or equal to the first temperature.