Solution: check the disconnection point of high-voltage line, reconnect it, treat it with high-voltage insulating tape, and then use asbestos sleeve for high-temperature protection; If the high-voltage wire is separated from the ignition needle, cut off the head of the high-voltage wire by 5MM and reconnect it at the tail of the ignition needle;

2. The high voltage output circuit of the pulse igniter is faulty.

Solution: It is very likely that the performance of the pulse igniter is poor or damaged, so replace it directly according to the serial number of the original model;

3. The ignition needle is too far away from the burner metal.