Relay problem

John Fields wrote

If the boiler and all the rest of it is brand new, and you wired it
>together and it doesn't work right, guess what... It's probably your
>wiring that's at fault.
>
>You've posted no schematics, nothing about what the problem is other
>than that the relay is buzzing, and nothing about what you've done
>to isolate the problem, and yet you seem to expect us to pinpoint
>the solution for you because you say you can't afford to have a
>professional come in and do it properly.
>
>What's wrong with that picture?...
>
>--
>John Fields
>Professional Circuit Designer

Yup, as I said >This could be OT, but I'm posting here to get replies with no

baggage....
>I have a relay in my boiler which buzzes/arcs I'm trying to diagnose
>the fault, probably in my wiring. What conditions (eg shorting) would
>cause a relay to switch on & off very rapidly (leading to a buzzing
>noise) & arc?
>Many thanks
>Jonathan

I did not ask for you to pinpoint the cause, I asked for guidance to point me in the right direction so I could learn & sort it out myself. Thats why I posted in a less-obvious NG. I don't expect stuff to be dished up on a plate, and I realise that there are many kind experts out there who will offer advice. I could easily scan all the schematics, post them in & sit back & wait for someone to sort out my mess - but that's not the way I do things..

At the moment, I have done nothing as I am on a recce. Armed with any helpful responses like the one from Rich Grise, I will tackle this shortly.

Thanks to all who gave constructive replies.,

I think I have forund my answer from another NG - & have started isolating components.

Cheers J>>