hi there, first post on here. I've got a shed in my garden which I connected to one of the feeds to a wall socket in the house. I hooked it up in June and it worked fine until about a week ago. The power went off in the house. I turned it back on again. About a week after that it went off again and couldn't be turned on as it would turn off immediately. The cable to the shed runs down from the attic on the outside of the house through a metal conduit. When it gets to the ground it runs along a fence and then goes under the lawn to the shed. When it gets to the shed it splits up via nylon connector block and conduit junction boxes to feed 4 sockets. All under the shed floor. So I'm sure this question has been asked a thousand times before... but is there a way to find the fault without digging up the lawn? I've got to take up the shed floor anyway to do some other work, the floor was only put down temporarily. Can I use a multi-meter to test resistance and somehow work out where the fault is like that? My dad does not do much DIY himself but pointed out that where the conduit has been welded to the shed frame it is possible I've burnt through the insulation on the cable inside the conduit. It's also possible water has got into the conduit. I pumped the junctions with silicone to prevent water damage. It is probably water related as the fault took some time to appear. So yes, main question is how to find out which branch of the wiring to investigate. I don't want to open up everything?