| 摘要 |
PURPOSE:To detect temperature of a condenser, to detect cooling speed of a refrigerator and to diagnose a refrigerator state from both the views by providing comparing means inputting a signal of condenser temperature detecting means, a timer for feeding back an output signal, and calculating means inputting a signal of memory means inputting signal of indoor temperature detecting means. CONSTITUTION:Indoor temperature detecting means 25 for detecting interior temperature in a refrigerator upon inputting of signals of compressor operation detecting means 26 and a timer 21, and first and second memory means 23, 24 which input the signal of the means 25 and output signals to calculating means 27 are provided to detect not only the temperature of a condenser 2 but also cooling speed of an indoor temperature, to sort the temperature rises of the condenser 2 by to an ambient temperature and to clog of a filter 5, thereby effectively displaying a malfunction. |
