Hello all , can you help? i have a upvc french door on my kitchen with a lock that seems to be giving up the ghost , when i go to lock the doors the handle that you lift before turning the key needs excessive force to get it in position , i have to work it up and down sometimes before giving it the large upward thrust to locate the pins i guess so as to be able to turn the key in the eurolock . Can you give me some ideas as how to overcome this please .. cheers mark