I had the same problem with my machine.
You need to reset the electronic programmer by doing the following: In the event that this does not work, then the programmer has gone and not viable to replace on a machine of 4 yrs old.
Reset Procedure:
With the machine power switched off, turn the programmer to a programme end position (denoted by a dot).
Press and hold down the power button until the power light flashes at steady intervals (Approx 10 seconds)
Let go of the button and press the power button again to switch off.
You have now reset the electronics.
If the machine does not function now, it is a suspected programmer fault, ballpark replacement cost £170 parts & fitting.
Cheers
John Smith
September 2006