Upvc door won t lock even when open.
Multi lock door wont lock.
Warping if the door cannot physically lock due to the frame or door being warped an adjustment of the strike plate could rectify the problem without the need of a new lock.
A slip of a cog or a broken spring maybe.
It can also indicate the cam has become worn.
Upvc gearbox failure most common.
This problem with the multi point locking system can develop over time until the lock suddenly stops working.
On doors where there is a multi point locking system this can be a sign that the system has been worked too hard.
Door lubrication is required.
This is the kind of door hardware that runs the entire span of the door frame and engage.
If you can t get the bottom hook up by sliding something in and pushing up then the teeth or a slipped cog is in the way and your probably not going too.
Key will not work if you ve had a new spare key cut recently it could be a poorly cut key causing the problem.
If the locking mechanism is an all in one then you have a problem within the bottom mech box which holds the bottom hook.
This is the first time i ve ever worked on a multipoint lock system.
Multipoint lock is damaged.
Upvc gearbox failure or multipoint lock damage.
Lift the handle turn and remove the key step 1 close the door.
Have you had a new cylinder fitted.
How to free a stuck lock.
If your upvc door won t lock even when still open this is usually because of the following reasons.
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