Help please - missing current, where has it gone?

[Marvo]

No use old cable to pull in new but be sure that is the problem first!!! Have u completed a continuity test to make sure its the Neutral definatly broken????

The OP is a plumber by trade and he's fault finding what's likely a broken neutral fault in some poor customers house with a neon screwdriver. Hence the underlying theme of 'get an electrician to help you' in most of the replies after it was established it wasn't an obvious fault.

He doesn't have the training or the equipment to to start continuity testing circuits or loop impedance testing either for that matter.

 

[Air Conditioner]

Don't do it!!!
Is it really worth saving a few quid, doing it yourself, only to risk the lives of not only yourself but the ones you love and your property.
Get in a professional.

 

[olfrog]

I've ended the circuit so that while no lights in the utility right now, it's safe and fine in rest of building until i have the cash to get someone in or time to get to grips with..

Thanks for all your help peeps.

 

[telectrix]

shouldn't cost much to fix it. i would estimate a simple call-out fee of 40-50 quid would cover it.