Zanussi JetSystem 1200 XC?

When I press the start button after selecting a wash program, nothing happens.
I can hear the beep from the start button but the green light that's over the start button just keeps flashing.
There are no error codes displayed, just the length of time remaining for the whole program (like normal). The door is locked and lit red. I don't know what to try next, especially with no error codes being displayed?


Any ideas where I should look??