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Radiators staying on

Many thanks. That sounds logical. Is there a way I can test this? Do you know where it sits? I am guessing next to the red tank near the heating controls? EDIT: Got it! A Myson Power Extra - little white box. Silly question perhaps - should I knock it with a hammer to see if it frees up the...

Thanks. There's a switch marked "Heating" next to the Hortsman controller. I switched that off and the cupboard where is is went quiet. (There's a small red tank in there, loads of piping, a water tank which I presume is nothing to do with the central heating, and yet another controller with all...

Streuth! The temperature is still going up. Just put batteries back in the thermostat and it's 27.5 in the room. Is this dangerous? How can I disable the whole system?

Thanks. The water was off, but I've made sure it is by switching the controller to permanently off. It's ridiculously complicated. We have solar panels, heating up the tap water, and if the water in the tank isn't hot enough, then the boiler will add some more heat. The Central Heating...

Hi. I know very little about central heating systems. My problem is the radiators are all stuck on full blast. I am using a Honeywell thermostat, I think it's a DT90E. The thermostat is set to 20. It shows room temp at the moment to be 26.5. There is no 'flame' symbol on the display, so...

Thanks. Is that the only solution? The building firm who put the house up are telling me to check the pressure gauge on the boiler and seem to think this is a case of me not knowing how to work the system. Is it possible it's something which I could fix if I knew what to do?

Hi. Hoping someone can help - just moving into a new house and the thermostat seems to have packed up - I'm not sure. It is a Honeywell and I think it is the DT90E. On the digital display, where the temperature normally shows, it just says FAil. None of the buttons respond when...