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This Ideal Mini C combi is approx three years old. It functions fine for hot water but will not operate for CH. Nothing at all no sounds of a fan or sparking or a pump running. A plumber reccommended calling BG to use their fixed price repair scheme, £150.00, I believe. Just wondering if anyone...

The house is approx forty years old. All the stranded earths I came acroos in my investigations were unsleeved. I remedied that as I went along. The kitchen was re-modelled and extra sockets added about six years ago by a guy who I later found out had rather dubious qualifications. Had I not...

Just thought I'd update. Fault was located in the last socket that I really wanted to look at, low down behind built in oven. Neutral insulation had been nicked and the core was either touching the metal box or the unsleeved earth conductor adjacent to it. All wired into the RCCB side now and...

Just thought I'd give an update. I did indeed find a disconnected neutral at the back of one of the kitchen sockets. This restored the continuity in the neutral circuit. Problem solved, NOT. Connected into RCCB side again and it tripped. I now appear to have continuity between the neutral and...

Oh sugar....I definitely thought that solving the continuity problem would be the answer. You mean that there could be something else???. I feel that it's unlikely that it's a borrowed neutral. The affected ring main runs down from the CU and both lighting circuits go up over. It would have to...

Thanks to RF for the in-depth reply. I think I should point out that this is a diy install and IR values, r1 and r2 just went whooshing straight over my head. I was looking for some magical test that would save the work you describe. Looks like tomorrow is going to be a long day. Thanks for...

I installed a new split load CU today. RCCB tripped and the fault was traced to the downstairs ring main. A test with a multimeter showed no continuity across the neutrals at the CU end, however the circuit worked when installed on the non RCCB side of the CU. I can only presume that the fault...