Central heating wiring fault. In need of some help please.

[tamz]

Just test it all in position preferably against an earth.
They won't teach you anything about wiring heating in collages and they barely mention it to electricians.
Beats me how young ones are supposed to learn it but you will pick it up.

 

[dontknowitall]

You can try it at home (without the pressure of course).

If your wiring centre is in the airing cupboard you can turn the hot water cylinder stat up and down and see what happens with the wires/multimeter (mind the voltage though!)

Then once you've found the connections for the hot water cylinder, look for another component (e.g. the pump).

It might not teach you loads (maybe it will?) but at least you won't be frightened of looking at a customer's wiring centre. Bear in mind that if there's a wiring fault it's going to take a while to sort out (even if you are reasonably experienced).

 

[quality]

The difference is that if it has worked correctly previous to the fault then its obviously a component fault if it has never worked proper then disconnect every thing and wire it correctly

 

[mutley racers]

keep em coming folks. This is really good. i was feeling a bit stressed a couple of days ago. But now, it is all starting to make sense. i have pretty much learnt the the s and y plans. The diagrams any way. so should be able to to know what goes where in a wiring centre. The place where i live though, the wiring goes from the programmer, to a wiring centre near the boiler, then into another wiring centre 30cms away and then through the kitchen ceiling, along the loft and down into the airing cupboard into a little junction box. And the pump wire runs straight to the boiler, and i think some how, into one of those wiring centres and back to the airing cupboard.

So i did not know if this was the live from the boiler or the live from the pump that should go into my wiring centre. As there was only this cable left. I assumed it was the pump and wired it to the orange and it all works great.

how can you test if it is the pump?

 

[mutley racers]

Hi tamz, i was recently in edinburgh for for a weeks holiday and i noticed on the buildings there they had these 22mm copper pipes on the external walls which came from inside and went vertical and then had a bend pulled more than 90degrees.

Is this how you guys do your blow off?

 

[Bartdude]

Hi tamz, i was recently in edinburgh for for a weeks holiday and i noticed on the buildings there they had these 22mm copper pipes on the external walls which came from inside and went vertical and then had a bend pulled more than 90degrees.

Is this how you guys do your blow off?

They don't even like giving water away up there🙂

 

[tamz]

Hi tamz, i was recently in edinburgh for for a weeks holiday and i noticed on the buildings there they had these 22mm copper pipes on the external walls which came from inside and went vertical and then had a bend pulled more than 90degrees.

Is this how you guys do your blow off?

No🙂
Those are expansion pipes on the old tenement flats.
Each flat had its own lead lined cold water tank, usually above a lowered part of the bathroom ceiling in the middle of the flat. There was usually a dublo tank (narrow twin cylinder) in an alcove next to the sitting room fireplace. As the hot water was het by coal via a direct back boiler you weren't allowed to terminate the expansion above the tank because they boiled over every other day (it was too far away and no road to it anyway) so the expansion was taken up to high level and out through the wall. A loop of pipe was then taken up against the wall about a foot or so then dropped. These pipes are often onto the main pavements as most don't have front gardens. The water just ran down the wall.
And they worry about a pyssy wee prv pipe nowadays😀

how can you test if it is the pump?

If you can't trace it pull the wire out and see if it stops.

They don't even like giving water away up there🙂

We've got loads of the stuff. Lovely and soft too. None of that limescale or filtered sewage rubbish up here😀

 

[mutley racers]

oh i see. Now that makes sense. Thanks. i have been wondering what they were for a long time.

Yes its funny now how the regs are with blow offs and discharge locations from unvented.

Quite silly really.