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Hi, I have the above boiler which seems to have developed an 'issue' with heating the hot water. When the boiler is on CH and HW at the same time, or just CH, there is no problem. However, when set to just HW the return to the boiler is very hot, and the boiler stat trips and the boiler...

Hi, Sometimes, about three or four times a week, my boiler does not turn on when the room stat calls for heat. I have to switch the whole system off at the mains, wait a few seconds, and then turn it back on. All is then fine. It seems random, and not caused by any particular event. It's...

Hi, I hope you can help with the following :) I have an open vented central heating system. It all seems to work well, except for a water noise, like slushing, near/in the pump. The system does not pump over, nor does there appear to be any air in any of the radiators etc. The noise...