| 摘要 |
As internal temperature is set up by a temperature setting part(22). The internal temperature of a refrigerator is sensed by a detector(21). The comparator(31) informed of the temperatures compares the output signals of the temperature detection part(21) and the temperature setter part(22). When the set-up temperature is below the sensed temperature, outputs a control signal to open up the lst and the 2nd dampers(18,19). As the control part's readings of the signals show dampers error, it drives output part's(40) buzzer(132) and the lamp(LED) and informs damper error. In case damper error is not detected, it drives the lst motor and controls opening/closing of the lst and 2nd dampers(18,19).
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