No motor action at all...

There's no motor PCB - cable goes straight to motor from controller.

The controller initially looks slightly black in one area, but a little
wipe and it looks clean - no clear sign of damage.

Actually I'm a bit stumped so it's probably

a) simple mistake - £60+ callout/fix?
b) bust motor £lots
c) bust controller £150?

or get something like a Bosch WFO2467 for £271 or so....

This is now looking tempting given the machine is probably 7-8 years
old.. better washes, all new parts etc etc.