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Thanks for replying. I will follow your guide but I was wondering whether I will be able to have any seperate control of heating with the FP715 without the htg off terminal connected. I do have some knowledge of electrics as I work in Film/TV lighting - but absolutely none of boilers...

Sorry, I don't understand your question. The replacement FP715 - which was the one I was recommended by Danfoss technical sales- has only L, N, and four other terminals (H on/off and W on/off) on the mounting plate, which has to be replaced from the one on the 4033. This, as I said, has 8...

Hi Hope someone here can advise. I wish to replace my broken Danfoss 4033 MKIII with a new controller and have purchased a FP715 replacement. However when looking at the wiring diagram on the Danfoss website in order to identify the current setup I noticed that mine is not wired as they...