Day Tripper

We had a circuit breaker trip but when I put it back it would pop down again.  Most appliances were not working including the air con.  I could see errors on the Solar unit so spent a half hour searching for the book to see if there was any other info. In the mean time Debbie went next door as we could see a sparky van parked there.  He comes in and the first thing is to put that same circuit switch back and this time it stayed and all the power came back on.  So simple but the trick is what tripped it in the first place.  Something to do with power leaking to Earth.  Before that many other boxes were unpacked and some time spent on the deck.