3 green lights flashing?

My lavamat 6555 is eleven years old (1997).
E-No 605.649122
F-No 05569518

After a regular wash the machine stopped. The Door light and the Pause/Start buttons do not light up.
3 lights continually flash green:
1200 spin
700 spin
& End (of cycle)
The door has been opened using a coin in the emergency door opener and the clothes removed.

Water inlet has been checked for blockage - none.
Out pipe has been checked for blockage - none.
Filter has been removed, cleaned, and replaced.

Any ideas please?