Hi, it may be that the lock in the panel is broken or loose.The catch then faces the wrong way.If you look at the gap at the front of the panel where the lock is,it should be facing you.You can get a small screwdriver in and flick it forwards.It will then reprogramme.The machine thinks the door is closed so you cannot alter the programmes.If you touch the P button it just bleeps twice.
This may cure for a while but if it goes again you will have to change the panel.They are about £35.
All the best.
Foxy
July 2008