Hi Sue, can you look at the door lock in the control panel.It may be the locking pins in the panel have broken on one side, this leaves the lock closed when it should be open.The machine will not accept a programme as it thinks the door is shut.Flick the lock forward with a small screwdriver and it should take a programme.A new panel is quite cheap.Hope it is this, All the best.
FOXY
August 2008