IGNITION FAILURE SIGN DETERMINATION SYSTEM AND BURNER COMPRISING THE SAME

To excellently determine a sign of ignition failure before ignition becomes completely impossible.SOLUTION: An ignition failure sign determination system comprises: current measurement means Am of measuring a current value supplied to ignition means SR when the ignition means SR ignites; and ignition failure sign determination unit S2 of determining that there is a possibility that a sign of ignition failure has occurred when the current measured by the current measurement means Am at the time when a burner 10 is ignited by the ignition means SR exceeds an appropriate current upper limit threshold derived from an appropriate current value when properly ignited by the ignition means SR.SELECTED DRAWING: Figure 1 【課題】完全に点火ができなくなる前に、点火不良の予兆を良好に判定する。【解決手段】点火手段ＳＲにより点火される時に、点火手段ＳＲへ供給される電流値を計測する電流計測手段Ａｍと、点火手段ＳＲによるバーナ１０への点火時に、電流計測手段Ａｍにて計測された電流が、点火手段ＳＲにて適正に点火される場合の適正電流値から導出される適正電流上限閾値を超える場合、点火不良の予兆が発生している可能性があると判定する点火不良予兆判定部Ｓ２を有する。【選択図】図１