Refrigerator and control method of refrigerator

A method for controlling a refrigerator including a cabinet that defines a storage compartment therein, an evaporator, a case that accommodates the evaporator and that defines an inlet configured to receive air from the storage compartment and an outlet configured to discharge air into the storage compartment, and a differential pressure sensor configured to detect a difference of air pressure between positions of the case, the method comprising:

• performing a first defrosting operation of the evaporator;
• terminating the first defrosting operation of the evaporator based on a temperature of the evaporator being greater than a first temperature;
• detecting, by the differential pressure sensor, a pressure differential corresponding to a difference of air pressure between (i) a first air pressure at a first through-hole that is defined between the inlet and the evaporator and (ii) a second air pressure at a second through-hole that is defined between the outlet and the evaporator;
• performing a second defrosting operation of the evaporator based on the pressure differential being greater than a predetermined pressure;
• and
• terminating the second defrosting operation of the evaporator based on the temperature of the evaporator being greater than a second temperature that is equal to the first temperature.

A method for controlling a refrigerator including a cabinet that defines a storage compartment therein, an evaporator, a case that accommodates the evaporator and that defines an inlet configured to receive air from the storage compartment and an outlet configured to discharge air into the storage compartment, and a differential pressure sensor configured to detect a difference of air pressure between positions of the case, the method comprising:

• performing a first defrosting operation of the evaporator;
• terminating the first defrosting operation of the evaporator based on a temperature of the evaporator being greater than a first temperature;
• detecting, by the differential pressure sensor, a pressure differential corresponding to a difference of air pressure between (i) a first air pressure at a first through-hole that is defined between the inlet and the evaporator and (ii) a second air pressure at a second through-hole that is defined between the outlet and the evaporator and vertically above the first through-hole;
• and
• performing a second defrosting operation of the evaporator based on the pressure differential being greater than a predetermined pressure,
• wherein the differential pressure sensor comprises:
• a connector disposed at an upper end of the differential pressure sensor,
• a first pipe that defines the first through-hole and extends from the first through-hole to the connector, and
• a second pipe that defines the second through-hole and extends from the second through-hole to the connector, a length of the second pipe being less than a length of the first pipe.