RCD Problem

[tony mc]

I would split the ring as Murdoch has outlined and then put into practice what Handy sparks has said re switching over to low ohms which will start to narrow it down and get you closer to the problem.

Before you split he ring test end to end continuity first on all your cables.

Good luck!

 

[i=p/u]

if its showing a short. low ohms range meter is your key to success... dreading my faults to come... only joking am i hell

 

[jjnr78]

I had a similar problem just before Christmas...is the central heating on the circuit? if so check that the pipe monkey hasnt terminated into the feed side for the boiler wiring. I had a CH pump go faulty, switched everything off, unplugged everything and after a short while of halving the circuit, i checked behind the FCU to discover they had terminated to the feed, not load. Try that for all FCUs. Drop all socket faces too before breaking down circuit in case someone has terminated a light point, shed, garage into the back of a socket. Good luck

 

[oldtimer]

Remember even although you have the switch off the socket and the FCU both could be single pole switching I spent ages trying to find a fault and tracked it down to the electric fire had a neutral to earth fault fed from a SP FCU also you say that everthing was unplugged but never take it for granted as some clown could have spurred off to feed say a outside light

 

[SPARTYKUS]

Remember even although you have the switch off the socket and the FCU both could be single pole switching I spent ages trying to find a fault and tracked it down to the electric fire had a neutral to earth fault fed from a SP FCU also you say that everthing was unplugged but never take it for granted as some clown could have spurred off to feed say a outside light

or even wired in a spurred socket under the floor on the landing and plugged a signal booster in. Seen it.

 

[polo1]

.....and please, please, please remember to post back what the problem is/was!:lol:
Regards.

 

[oldtimer]

Polo you are expecting a lot

 

[polo1]

Polo you are expecting a lot

:wink5:

 

[BillyTheSparks]

Always check the loft when doing IR tests especially on lighting circuits.
As these are also the right cicruit for a TV amplifier...

 

[Bromd123]

Found the issue!!!

The kitchen sockets were run as spurs from spurs from spurs etc!! it turns out the feed from the kitchen comes from one socket upstairs that then went into a JB in the ceiling of the kitchen Extension and then splits into 2 radials. None of the cables fused down. There was a leak in the roof of the extension which was causing the JB to get wet thus giving me the fruity readings and tripping the RCD

I ended up Isolating the circuit from the socket which cleared the fault. The Oven and Hob are fed from different circuits each with their own isolator and socket and there is a computer socket in the kitchen that is on another circuit not on the RCD side of the board. so she still has some power in the kitchen that she can plug fridge into etc. I have advised my sister that the house needs a rewire to get rid of all the dodgy circuits but she cant afford one right now so things will stay as they are.

Thanks for all your help guys!

Dave