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Hi My heating has simply stopped working and i wanted to know, could a faulty 3 port valve do this? The boiler is in the garage and will fire up when the froststat is turned, however turning the heating and hot water does nothing. I had a similar fault a few weeks ago, but that time it...

Hi I was wondering if anyone can help? I have just installed a new room thermostat as the old one stopped working. It all works fine, however it ignores the command of the boiler programmer and will simply fire the boiler whenever the temperature drops below what is set even if the...