It s possible that there is an issue with the lock cylinder.
Patio door won t lock when i turn the key.
Patio doors lead to the outside and have to withstand all kinds of abuse from the weather doors being slammed and being hit with flying objects.
Watch to make sure the lock extends from the door where the knob is positioned.
Someday you might come home or go to open up your business and find that your key won t turn at all not even a little.
Upvc patio door won t lock key turns continually.
Faulty lock the internal mechanism could be broken.
Key won t turn in lock i couldn t get my mail so i tried something whilst the camera was rolling and it was almost a miracle result.
Open the door and check to see where the petroleum jelly has transferred to the latch on the door frame.
Forcing it could break the key in the lock.
Upvc back door won t lock.
There are several reasons this might occur.
If your patio door isn t locking repair it quickly so that your home remains safe.
When upvc patio door.
Hi problem locking my back door the bolting mechanism seems to work fine ie.
Upvc back door won t lock hi problem locking my back door the bolting mechanism seems to work fine ie.
The door has been realigned however even with the door open the key won t turn in the lock.
Open the door completely and twist the lock as usual.
Attempt to turn the lock.
Key is hard to turn or won t go in the lock don t force the key.
When you insert your key the key raises the pins to the point where the division between the top pins.
When i raise the handle the 4 bolts go into.
As a result your patio door lock can malfunction.
At right illustrations show the operation of a standard pin tumbler lock.
Debris or ice from cold weather may be causing problems with the cylinder or you might simply be using the wrong key.
The door has been realigned however even with the door open the key won t turn in the lock.
Smear petroleum jelly on the lock itself and close the door gently.
Ah yes they were more helpful suggestions than mine.
Its only when i couldn t pull the handle up to lock our back door i actually realised that the altough the door appeared closed the trim wasn t allowing it to close properly which in turn meant the door handle couldn t be pulled up to allow the door to lock.