Hi Boneman.
I would endorse the advice in spark123 earlier posting.I have just joined this site & I am glad you are not put off by the " UROLOGISTS "& their extractions.
Regards
Hi Sparkybird.
Intermittent faults can be very difficult to find.The appliance doesn't have to be switched on to cause tripping.The favorite items are usually Kettles, Irons, Washers, Fridge/Freezers.Microwave. I would suggest you unplug all items when not in use. If this solves your problem...