Good people, I tell you; I have a volcan water heater in which the pilot is not on. When you release the key, it turns off. Change the thermocouple and nothing; the funny thing is that if I force the ignition of the burner by opening the bobbin while opening the gas passage and approaching it, when the burner is ignited, so does the pilot, then, when the bobbin is closed, it remains lit but after a Time goes out again. Any help is welcome. Regards!