I've recently had my gas boiler serviced which pulled up a fault on my upstairs mains cct.
The cct has no earth connection to it. Pulling back the socket fascias shows that all the sockets have a good earth connection to them so to check I ran an extension lead from the downstairs cct and plugged a plug in without the back on to expose the terminals. Metering between the exposed earth terminal in the extension lead and a earth wire in the back of one of the upstairs sockets showed six meg resistance.
Besides the obvious, making sure it has a good earthing at the consumer unit and breaks in the cable, does anyone have any other clues as to what may be at fault?
The cct has no earth connection to it. Pulling back the socket fascias shows that all the sockets have a good earth connection to them so to check I ran an extension lead from the downstairs cct and plugged a plug in without the back on to expose the terminals. Metering between the exposed earth terminal in the extension lead and a earth wire in the back of one of the upstairs sockets showed six meg resistance.
Besides the obvious, making sure it has a good earthing at the consumer unit and breaks in the cable, does anyone have any other clues as to what may be at fault?