I have been having issues with my cga leaking water and shutting down, I'm assuming it has to do with the leak? It shut down a few weeks ago but I saw no water. I replaced the thermocouple and it started right up again. I shut my heat off yesterday and when I put it back on today the boiler shut down once again, this time with water visibly dripping down from the insulated panel directly in front of the cast iron blocks. I moved the panel and was able to see that the nipple on the left side of the boiler that screws into the top of the cast iron is badly rotted in that area. It comes up from the cast into a tee with the pressure gauge. Theres what looks like a small relief valve coming up next to it through the same hole in the top panel of the boiler that has been steadily dripping water.Would that cause a shut down? I'm not sure why the little relief is dripping. Any help would be greatly appreciated. Thanks.