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.
Composite door handle wont lift to lock.
Cold weather upvc door lock won t lock or shut properly.
On the long edge of your door about level with the handle you should see a small plastic switch that should be pushed down.
You can see the hooks sticking out of the side of my door in the picture below.
The reason for this is simple the door is not in line with the frame.
How to remove false mullion from a upvc door and fix a broken handle.
Hot warm weather upvc door lock won t lock or close.
The second reason why a upvc handle wont lift to lock the door is caused by a broken gearbox.
Patio house french doors and then.
But that should be all.
By turning the key in the cylinder whether from the inside or the outside you are locking those hook bolts into the positions you can see above.
If you re having trouble locking your door you may need to have a look at part of the door that s referred to as the snib.
If it is stiff to lift then eventually the lock is going to break.
The reason your upvc handle will not lift up or go down is usually not a problem with the handle itself but a problem with the door or faulty locking mechanism.
When the door is closed and you lift up the handle the hook bolts are thrown into their keeps in the doorframe.
If it s not in this position lift the handle and push it.
Now you need to close the door and lift the handle this should also be smooth perhaps a little resistance as the door compresses against the seals.
If this helps leave a like so others can see it.