Recent content by baytree

No the circuit doesn't supply anything outside, but I think it has been adapted from an old circuit that used to go to a slightly leaky conservatory. So there may be old parts of the circuit that are still subject to water ingress. The fact that heavy rain causes the problem does suggest this...

Thanks - as far as I can see, that is basically something that measures resistance, but up to higher resistances than a standard multimeter? So if I use my normal multimeter, which goes up to 2M ohm, and find anything less than that in one part of the circuit, then I've probably found the culprit? 

I have a problem with one of my downstairs socket circuits. When it rains for a long period (eg in July!), the circuit sometimes (but not always) trips. It seems obvious to me that water is getting in somewhere. My thought about solving this is to find out which bit of the circuit is causing the...