Dropped door handle on double glazed patio door?

If the locking mechanism is still working, and the handle behaves apart from not springing back, it sounds like the handle return spring (!) is broken. Take the handle off and see if you can see what I mean. It could be a good move to take the other (working) handle off to have a look at that one....ERA is the make of the lock, and B&Q have some replacement parts.

John
May 2008