Please can someone help! 10 year old (new build) house...other half plugged in something upstairs and said as a result SOME of the sockets upstairs have stopped working. Some worked fine and others not. We then check downstairs and same situation, some sockets working and some not. I have checked the fuse box in the utility and nothing was tripped? I have pressed all the individual switches in the fuse box to “off”and then back to “on” again, still no change - some plugs work and others don’t. I would say it is like half of one side of the house is not getting power to the sockets. All lights etc. are fine. Any idea what on earth could be wrong???