SNAP!! We have exactly the same problem - we have managed to remove it by lifting the left hinge upwards while keeping the door opened and supported.
I telephoned the helpline - there are no diagrams available and there was nobody I could speak to!
I guess we will have to pay someone who has the "knack" and the knowledge. This also happened on our Diplomat range cooker and it cost £40 for 5 seconds "work"!!!
Next time - we will NOT buy Diplomat - no help, no website, no downloads - useless. Sorry cannot be of more help - but if I work it out - will post again.
David
January 2008