The message
from Marky P contains these words:

Dunno if this is the right group for this but here goes. My washing
machine (Zanussi Aquacycle 1200) is tripping the RCD after filling
with water. I thought it may be the element, but I've removed it & it
looks fine to me though it does have some scaling. Anyone got any
ideas?

I don't think you'd be able to spot a tiny hole in the element. Try
running it with both heater wires disconnected (put them somewhere safe,
obviously!) and see if it trips then.

--
Skipweasel
Pay no attention to that man behind the curtain.