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Hello all, I have a problem with the header tank to the central heating overflowing. I've checked on this forum & followed all the advice but it seems the heating coil inside the indirect hot water cylinder is leaking. The system has been filled from new with Fernox, & I replaced the fernox 3...

many thanks for your prompt reply. The boiler is a Boston 40 of. Looking at the grey on/off switch, there is a large screw cap to the right of it. I have removed this & behind it is a nylon screw. Screwing this fully in, then out didn't make any difference to the pilot. Next to this is a grey...

Hello, I wonder if anybody has any experience with the above gas boiler extinguishing the pilot flame when C/H thernostat cutting in. Heating water only is no problem. C/H works fine until temperature is reached but when C/H returning to pilot flame, the flame flickers wildly and goes out after...