Have you read the book? I just couldn't read "The Council of the Elves" chapter.
Looking back, I realise I read the whole book just because it was one of those things I knew I kind of should do. I don't think I enjoyed it, or even understood it.
I bought a new relay (with postage £9) and it didn't test continuous between the two contacts in question. All good. Took off old one and soldered in new one. Rewired. All works as expected!
Thanks again for all your help. :D
Thanks for your replies, you all have been invaluble. I have ordered a new relay and I'll let you know how I get on.
In the meantime, this is the wiring diagram I am following:
I am concerned that the Radiator circuit zone valve could send a live via the orange swicthed live into the...
I can only see the relay on the board, this is the other side:
If it is not the relay I am at a dead loss of why the live and switched live on the board with nothing else connected buzz on a continuity test. :cry:
What is on the switch? A small amount of buzz is normal but if you have transformer fed lights which are not designed to be dimmed this can cause buzzing.
That is really great - thank you so so much. :D
There is no other control circuitry, so would connecting a live supply to the switched live out cause the welding of contacts together?
I am thinking of soldering a new one on rather than paying £120 for a new board. Do I need to follow any...
I think this orange relay has got stuck on the 'on' position because *someone* connected the live supply and switched live output the wrong way around on this board for my underfloor heating:
Is there any way to reset it or is it fubarred?