At Seconline before we ship your chosen hinged security screen door, they will come with a main central lock that has an internal locking snib, two keys and all the necessary screws and striker plate.
Rest assured that full testing of that lock has taken place several times prior to shipping and during the fabrication stage. Damage can occur in transit; however, this is very rare. These are a very robust lock and we ensure additional packaging around the lock body so as to minimise any risk to the door during transit.
Once you remove your door from the packaging you will find the accessory pack which will have the door handles and necessary extras. They are packed and laid out in a container that cannot spill or allow any of the contents to be lost. In an individual pack you will find the correct handle for the side of the door lock that you have chosen whether it be a left or a right option. The internal door furniture or handle will have the chrome snib. This snib must be installed in the 12 o'clock or direct upright position. Attach door handles to the main lock body with the two screws provided and place cover caps over two screws. To ensure that you have done this correctly press the trigger above the main locking tongue. This will allow the lock to engage into the lockable position. If you have installed the snib correctly then the locking movement should be towards the 10 past or 10 to the hour depending on your door handle being on the left-hand side or the right-hand side.
Testing your lock: if you have installed your lock and are having trouble with locking either with the internal snib or the keys, then please follow the following procedure carefully. Open your door and prop it open with something heavy to allow the door to stay in the open position. Once you have the door located in the open position permanently, pull down on the door handles and release. It is imperative now that you do not touch the door handles again. Depress the small trigger located above the main locking tongue. This will allow the main tongue to engage into the outward lock ready position. Using the internal snib rotate from the unlocked 12 o'clock position into the locking position. If this locks the door correctly and there is no restriction or stiffness, it would indicate that the problem is not within the lock, but in the installation of the lock to the door jamb.
Now close your door and repeat this same process as you diagnose exactly where in your installation the restriction lies. This same locking procedure in the open position should be identical in the closed position. The same action feel and sound should be replicated in both the open and close positions. If not then you have not fixed the restriction and this can cause the lock to jam. It is imperative that you have no restriction in the lockable position; it must be free and unrestricted.
Diagnosis: It can be that you have not allowed enough room on the front or back of the locking tongue, or it may be that you have not allowed enough depth. A way to test if the door locking is going deep enough is to repeat the same process described above to test for the lock mechanism faults. Whilst the locking tongue is in the outward engaged lockable position, mark the tongue with a thin pencil or pen to indicate the full action or depth. Now close the door so as to engage the tongue into the striker hole and check that the mark you have made on the locking tongue is the same depth now as it was when you marked it in the open locked position. If the mark has not gone the full distance then this would indicate that you have not taken enough out of the striker hole to allow the tongue to fully engage; in other words, your lock hole is not deep enough. The lock must be allowed to have the locking tongue fully engaged otherwise it will not lock correctly.
If, however, you have a three point lock on your security screen door then the procedure is identical, but the top and bottom locking strikers must be checked as well. Retest in the open position several times to ensure that you have duplicated that same feel, sound and action as available in the following lock position. If you are in any doubt that you have not duplicated this then repeat the procedure until you have identified where the restriction in the striker holes are.
The above instructions on how to diagnose your lock problem may not solve your problems. As stated it may be damaged in transit or a fault may have arisen after testing. If you have tried the above suggestions for diagnosis and you are still having similar problems then please contact the Seconline support on 1300 735 405.