I've been trying to fix my Creda washer/dryer (1000 Supaspeed, aka Model
17343E, serial number 93103192 which I think means it's 1993 vintage).
It isn't functioning at all, and the 'power on' neon is dark. I've
tested the socket and fuse in the plug, which are ok, so I presume power
is getting in to the machine. It died during a drying cycle (interrupted
it to put in something else, closed the door, no more signs of life
since then).

From my online research, the next likely culprit seems to be the door
interlock switch, but that seems to be ok (microswitch works fine, and
bypassing the switch doesn't have any effect).

I can't see any internal fuses (don't know if there are any), can't see
any loose connections, and none of the easily-visible components looks
burnt etc. Any ideas for the next course of action?

David