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    Central Heating problem.... but hot water is OK....

    Hi Having a bit of problem with my central heating system - can anyone help please? Basically, when central heating control box is switched to 'hot water - on', the boiler fires up. However, switch it to 'central heating - on', and the boiler will not fire up, and will just remain on the...
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    Terrier room thermostat wiring help

    Hi Could someone help me out with the wiring on a Terrier TRT room thermostat please? I bought it to replace an ancient thermostat which I think is now faulty. My particular model is a TRT 1W. It has four terminals, labelled 1 to 4. It also has an earth tag, which I don't think is...
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