To execute an emergency operation approximating to a normal operation even when any abnormality occurs in either of two sensors in the case when an internal temperature is detected by at least two sensors and controlled.
In a controlling method of an internal temperature of a refrigerator, the internal temperature of the refrigerator is detected by at least two sensors and the temperature detected by each of them is sampled. At the time when some abnormality occurs in at least one sensor, an unnormal mean value is determined in relation to the other sensor being normal by using sampling values stored, while the unnormal mean value is compared with a reference temperature, and an emergency operation of a refrigerating chamber fan is conducted in accordance with the result of the comparison.
KIN SAIIN
TEI SEIKYOKU
