External discharge and fault detection method of igniter

摘要

The present invention relates to a gas boiler, and more particularly, to an external discharge and fault detection method of an agnitor that performs discharge by high voltage to ignite fuel supplied to a burner of a gas boiler. An igniter 7 for generating a high-pressure discharge in accordance with a control signal from the microcomputer 19, a flame detecting unit 9 for detecting an ignition state in the burner, In the gas boiler including the exhaust fan 15 and the infrared sensor 21 for checking the discharge state of the igniter 7, a control signal is outputted from the microcomputer 19 after the boiler operation command is inputted, When the high voltage discharge necessary for ignition of the igniter 7 is performed in the igniter 7, the discharge from the tip portion 7a of the igniter 7 is sensed by using the pentacle sensor 21 provided on the surface of the case 25 in the burner, And if the discharge is not detected, the fault is displayed on the outside by using the marking unit 23.