Gas locker door stuck

I can't unlock the gas locker on my Bailey Pageant; assuming the key is the same one as for door and all the other locks (I haven't got any other keys) Tried WD40, but no success. The door is not secured at the bottom, but I don't want to pull it too hard and break the door.
Any hints on how to get in?

Click here to post comments

Join in and write your own page! It's easy to do. How? Simply click here to return to Caravan Questions and Answers.