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That in itself isn't a problem as we use the immersion heater for hot water during the warm weather. But I can now wire in the HW side using the diagram you supplied. I can't thank you enough for your help; it was luxury last evening not to have that b****y boiler firing up all the time!

Hi Mikely, I had a look at this, and found that the tank stat wires have been cut short, so as a temporary measure I did this: Using the wiring diagram you supplied me: Controller 4/CH to roomstat, then Boiler and Pump feeds connected together to the return from the roomstat. (On the diagram...

Hi, and thanks very much to both of you. I'll have a go at it in the next day or two and get back to you. Thanks again.

Hi, Mikely. That is excellent. Thankyou. I'll see if I can work that out in terms of wires and terminals!!!! Just one thing: what do you mean by 'accelerator heater?' The room stat is a Drayton RTS 1. It has Live and Neutral going in, and a Switched live output coming out, (terminal 3). [that's...

Hi, Lectrician, thanks for your reply. It is all a bit basic. When we moved in there was no room stat; room and water temp were controlled purely by the boiler stat. I fitted a room stat. The water is gravity fed, and there are no valves in the system. With the boiler stat fairly high (for...

(This quote from the National Energy Foundation) http://www.nef.org.uk/energyadvice/heatingcontrols.htm Hi. Is there an electrician out there who can tell me how to wire this 'interlock' as I have this 'dry-cycling' problem, which is very irritating as well as being a waste of gas. I have a...

...also known as an interlock....

Hi. The boiler is a GF3/LFE5 Super. There is no frost stat. I've been searching the net and from what I can find out, the 'dry cycling' simply reheats the water in the boiler when it falls below the setting of the boiler stat. It's not because the room stat or the hot water are calling for...

Hot water controls are off permanently. The water is heated automatically when the heating is on. I recall that this problem is called 'dry cycling'. Does anybody have any ideas on that subject?

Hi, I wonder if anyone can help me with this please. This is a system with a Baxi Bermuda Back boiler. The heating is pumped, the hot water gravity. There is a room stat and a Drayton Tempus programmer. No tank stat; water temperature controlled by the boiler stat. The system works okay...