Recent content by DJH

Hi All, I am happy to say that I (well my brother actually) have solved the problem. The Danfoss diagram showed a link between the pump and the wiring centre that was not needed with pump over run. This wire was allowing back feed live to the boiler .In the end all that was required was...

Hi all. I have an update on my original problem. I have received some very useful advice and pdf's from sparkrj and jl-heating for which I am very grateful. I have tried wiring it up in different (to Danfoss) ways and there was no change.ie the boiler did not switch off when the programmer shut...

Hi, I suspect that it is something to do with the pump over-run. The Danfoss help desk asked me to get some info from Potterton(my boiler), they refused to help. When I told Danfoss this they just abandoned me. I can make the system work including boiler shut down, by disconnecting the supply...

Thanks Guys Yes I still have the problem, not been able to look at it for a few days. I have already rewired it from scratch, or a mate has, so that I did not repeat any mistakes. Convinced the wiring is as the Danfoss diagram. Sparkyrj sent a very useful pdf to me and it looks as if the wiring...

Thanks Sparkyrj. Sorry to be a pain but I have no experience with these systems. Can you tell me which microswitch you mean and also which stat, room or cylinder. Cheers

Hi, I hope someone can help me with this one. I have fitted a Danfoss controls pack to my existing Potterton Prima C boiler. It only had a basic timed on /off before. Everything works as it should except that the boiler does not switch off when the central heating side has been on and is turned...

Hello everyone my name is Dave and I am a keen DIYER. I have done my own electrical repairs and installations for many years now and have hardly killed anyone, yet!! I am new to this forum but have used others , mainly car based also for many years. As perhaps is the norm, it is a problem that...