Hi all,
Still trying to keep this old boiler alive for another year or two when we hope to build an extension and move the boiler location (would rather get a new one then). It's a Main HE system boiler. We have separate hot water tank in the cellar.
We've had an intermittent issue with the boiler where sometimes there doesn't appear to be any hot water. I noticed this a week or two when it was pretty hot here but by the time I had a chance to look into it more, the problem had disappeared. This morning again though, we've had no hot water. I turned on the hot water boost mode and the boiler fired up just fine. However, a short while later it turned off again. Then on again. It seems to cycle on and off with mainly being off. The lights don't indicate any fault. My guess a couple of weeks ago was that it might be overheating somehow but it's not been that hot today so now I'm not so sure. I had the fan replaced and pressure switch in late 2017 and the flue elbow in early 2018.
Any suggestions?
Still trying to keep this old boiler alive for another year or two when we hope to build an extension and move the boiler location (would rather get a new one then). It's a Main HE system boiler. We have separate hot water tank in the cellar.
We've had an intermittent issue with the boiler where sometimes there doesn't appear to be any hot water. I noticed this a week or two when it was pretty hot here but by the time I had a chance to look into it more, the problem had disappeared. This morning again though, we've had no hot water. I turned on the hot water boost mode and the boiler fired up just fine. However, a short while later it turned off again. Then on again. It seems to cycle on and off with mainly being off. The lights don't indicate any fault. My guess a couple of weeks ago was that it might be overheating somehow but it's not been that hot today so now I'm not so sure. I had the fan replaced and pressure switch in late 2017 and the flue elbow in early 2018.
Any suggestions?
Last edited: