G
gordy28
i have a glowworm 30hxi which is 1yr old, in the past few weeks it as started to make a roaring noise, it doesnt do it all the time but now and again, i have been next to the boiler when it does it, it will be getting up to max temp on the boiler when it will roar and the temp will rise rapidly and the temp stat will shut the boiler down, when the boiler starts again it operates normaly,