Richard,
Power light should flicker at the same time as the dial rotates. If you can let us know how many flashes occur in each group we can cross refer and maybe give you an idea of where to start looking.
In the meantime, switch machine off, set dial to a black dot and switch back on. Computer should reset, ready for programming.
The dryer section on most combi’s is not efficient, failure on this model can also induce the dial to revolve.
Regards,
Penguin45.