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Hello Tony, I understand what you're trying to get across. Really it's my mother who is trying to avoid parting with too much money. Yes, my thoughts are informed by the suggestion of Mark, as well as by looking at the schematic for the boiler. Thankfully ideas are not yet subject to...

Anyone prepared to chip in? My thinking is that it might be worth replacing the hi-low and limit thermostats and seeing if that helps...

So, some observations When the boiler turns itself off, the fan does not run. The pump keeps running. This affects both heating and hot water. I've looked at the wiring diagram, so I have some ideas of what could need replacing, but I will keep them to myself for the moment...

Hello folks, Many thanks for your replies, I will try to determine the answers to these questions in the next few days! For now I also have a wood burning stove so at least I'm not freezing to death...

I have been experiencing difficulties with my Myson Apollo 50Si boiler recently which are more than a little mysterious. If anyone is able to offer some help, I would be most grateful. When the system is cold, the boiler starts normally and will run continuously for approximately half an...