| 摘要 |
First, according to a change-over switch (33), it is judged which mode is selected, manual mode or temp. control mode, and when temp. control mode is selected, it is judged by an ignition detecting element(15) whether or not a gas burner (11) is in ignited state. When it is not in ignited state, an LED(30) is put in light-out state, and it is in ignited state, the LED is put on when manual mode is selected, it is judged whether or not, the heating state of the gas burner(11) reaches the target heating state after mode selection. And when it does not reach the target state, the LED is put on and off at specified time intervals, and when it reaches the target state, the LED is continuously put on.
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