D/washer is tripping the rcd suspect the heating element, going to bring the megger home from work to test. The usual web sites I use for spares don’t seem to list Electrolux heaters, am I missing something?
I have had this problem too.
It turned out that the machine wasn’t filling up with water. Needed a thorugh cleaning of the parts. (But it could be your heater if it fills with water).
Good luck
G