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Thanks - Just found another valve (Drayton) and checked that it was turning the valve ok when I put the heating on. So if the only job for these electrical heads is to open and close the valves, they seem to be doing this just fine. Also when I remove the electrical heads and turn the valves...

Thanks. The boiler is a system type. I located the valve (2 port sunvic 2301) and move the lever and the pump stopped, so I thought we had cracked it! I then shut the fuse off and put it back on, and the pump run again. I then tried moving the lever again on the valve, but I couldn't get...

Do you mean the controls on the wall where we put the water and central heating on? Or other controls? Sorry if my question sounds stupid. Thanks

Thanks to everyone who has posted! I've just noticed that even when the central heating and water is off on the controller, the boiler kicks in and out on it's own! It goes for A couple of mins and then shuts down. Then it starts over again. Does this mean anything? The boiler is a...

It's a new fault. Thanks

Hi all, Great forum you have here! Hopefully you can help me with my central heating problem? I have the following: Ideal standard icos condensing boiler Circulating pumps CP53 pump My house is a new build which is now 4 years old. The central heating system works fine, however...