Hello, thank you for your answers. It turns out that I have a 315 pro balanced shot orbis water heater that has not sparkled the ignition for a while since it is in an apartment that is not inhabited, I did not give it a ball, now it turns out that I want to fix it, disassemble the part of the autopilot (where the spark is generated) and I see that the white part of the spark plug does not isolate, so the spark is made where it is attached to the metal support, My query is: is there anything to be able to insulate or if can it be changed?