On Sat, 25 Mar 2017 21:52:42 +0000, Tim Lamb
wrote:

snip

Fair bit of carbon dust came out with the compressed air.


That was what fixed the RCD tripping issue for me on our AEG Lavamat.

It would (suddenly started to) trip instantly at power on but not with
the motor disconnected.

I was very surprised to see how much carbon dust came out of it.

Cheers, T i m