HELP!! Why does my ''Earth Fault Trip'' keep tripping?

[GreenGables]

I've turned off all of the usual culprits, but I am getting a bit concerned now. Usually when it is something like the iron or Christmas lights, the socket circuit trips...

Could it be the cooker?

no, the cooker is gas. ...just googling it, I wonder what makes the earth fault trip..??

My kettle did this before, had to replace it in the end

Oh dear me - this all looks rather too complicated! Does anyone know of any DIY websites that explain things simply, for a novice?

don't mess with electrics, get someone in OR unplug everything in your house and plug them back in one by one to see which appliance it is.

Don't worry, I am not about to pull my tool kit out
It looks like it is the iron, but I didn't think Irons are earthed so should it be tripping the earth fault?

anything plugged in can trip off your electrics, has the iron got a fuse in the plug, is it the right type, is the cord frayed? buy a new iron if you are not sure