Open front door to reveal the face of the lock.
How to change a upvc door lock barrel.
Locate the cylinder retaining screw using the cylinder as a guide and remove screw.
With a barrel lock it s the cylinder that allows the locking and unlocking of a door.
Only remove the key from the lock once the retaining screw is secured back into place.
Test the lock by turning the key both right and left a few times and gently tug on the key when it is turned to both.
How to change a upvc door lock.
The one presented here is a.
Slightly loosen the door handle fixing.
Put the key in the door barrel from the inside.
This will become more obvious as you turn the key as the euro cylinder will suddenly lunge towards you.