Dyson Contrarotator ?

Hey guys and gals,

The model number - I'm not too sure about but the colour is silver and purple (dyson guy on the helpline guessed the model from that alone)

It has an inner door and an outer door. Both are closed but the machine keeps complaining saying outer door is not shut, obviously its a bit broken... Don't really want to pay the £100 call out so anything I can do to re-program the machine or anything at all?

Thanks!