Tedx wrote:Not long back home to find that my back door key will turn / unlock-lock from the inside but not from outside.
The key goes all the way in front both sides and works perfectly from the inside. It wont turn from the outside. I've tried different keys.
It's a 4 or 5 year old UPVC door with 5 point locking. I've just applied lube to all the bits I can see with no success.
Google suggests the lock may be goosed?
Silly question, but what lube did you use. I had this (lock not turning), and the advice from the lockmaker was (definitely not WD40) but a graphite based lube. Popped down to the local helpful hardware store, got a graphite lube, and 5 mins later all sorted. Just saying....