When upvc patio door is open i can lift the handle and turn the key to lock and turn key about 400 degrees clockwise before.
Upvc door lock not turning.
Cold weather upvc door lock won t lock or shut properly cold and freezing weather will cause a upvc door to not lock or close properly this is due to contraction of the upvc the shrinking can only be 1mm o r 2mm but is enough to stop your door from locking.
Door not locking properly stiff handle when lifting up.
Lift external handle but wont engage multi point locking system and key wont turn.
There are several reasons why your upvc door could be failing to lock correctly.
We see a lot of upvc doors dropping over time which is similar to a wooden door warping as the same issue applies to both doors.
If the handle has been feeling a bit stiff and the key wont fully turn any more chances are that your upvc door locking bolts are not fully throwing because the door is out of alignment.
Leaving home pushed the external lever up heard a snap and the multi point locking system did not engage and extend out.
The door drops or moves over time and ends up moving the locking points to the point the door doesn t lock anymore.
Not only is this a inconvenience but if your the wrong side of the door and don t have access to another entrance your locked out.