To provide a refrigerator capable of detecting the leakage of refrigerant at low cost, improving serviceability, eliminating inconvenience to customers by erroneous operation, and increasing reliability in the detection of leakage of refrigerant from the refrigerator using inflammable refrigerant.
This refrigerant in which the inflammable refrigerant is sealed in a refrigerating cycle comprises a current value detection means 20 detecting a current value passed to a compressor 1, a compressor protection control means 21 stopping the compressor 1 when detecting that the current value exceeds a specified value, and a compressor operation detection means 22 detecting the operating state of the compressor 1. When the stopping of the compressor 1 by the application of an over-current thereto and operation after releasing the stoppage are repeated by a specified times, the leakage of refrigerant from a low pressure pipe is detected to correctly and quickly determine the leakage of refrigerant from the low pressure pipe of a refrigerating cycle.
HORIO YOSHIMASA
Tomoyasu Sakaguchi
Hiroki Naito
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