cant open upvc door?

it sounds like the lock has bust out of the mechanism housing. Try forcing the handle down when the door is unlocked this should get it open. Then if you take the lock out take all the screws out and remove the handle and barrel (you will need to wiggle the key and push the barrel from the other side at the same time) after doing this you will see the part of the lock that has bust out and move it back in. This will only be a temp fix you'll need a new lock. Hope this helps.

andisugg
January 2010