| 摘要 |
PURPOSE:To effectively detect and display a malfunction without influence of ambient temperature of a condenser by providing a counter receiving a signal of second comparing means, temperature regulating amount detecting means receiving the signal of a timer, and third comparing means receiving the signal of the detecting means and the signal of the second comparing means. CONSTITUTION:Compressor operation detecting means 22 receiving a signal from a timer 21 for detecting the operation of a compressor, second comparing means 23 receiving signals of the timer 21, the means 22 and a counter 27, the counter 27 receiving signals of the means 23 and third comparing means 26, temperature regulating amount detecting means 24 inputting the signal of the timer 21, and the means 26 receiving the signals of the means 23, 24 are provided to detect not only the temperature of a condenser but also the operating time of a compressor per one cycle, to sort the temperature rises of the condenser by to an ambient temperature and to clog of a filter, thereby effectively displaying a malfunction. |
