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Good Day, my boiler has worked reasonably well for 6 years. Last week I noticed that, when the CH starts, a few drops of water leak from the boiler in the area of, or perhaps above, the diverting valve. No further leaking occurs when the thermostat kicks in and out but, when the proces begins...

Yesterday I took the plate heat exchanger out, poured kettle descaler into both compartments, let it stand for an hour and after I had washed it out, I refitted the plate. The DHW is scathing hot; it is the first time in may years that I have had to add cold water to my shower!! Thanks for...

The boiler certainly worked for three or four days following his visit but then returned to its "problematic ways". I shall let you know what happens....

Good Day, Some advice please; This boiler is nearly 6 years old and has, up until now, been adequate for CH and DHW. A month ago the water was not getting very hot and so I called an engineer in. The engineer changed the diverting valve, the actuator and the two control thermisters. My...