Hello, my problem is the following, I have a stately C14 heater, yesterday I moved and I brought the heater, I installed it, as I had done before, but now I do not turn on the lighter, the pilot walks but there is no case, I open the hot water and the lighter does not respond, the water pressure is good and the pipe is new.

Are the flames yellowish? The radiator part may be slightly clogged and there is no good gas circulation, so it does not raise the temperature that should rise