Get A Quote
One of our team would be happy to have a chat with you about your requirements, answer any unanswered questions and measure up at a time that suits you to provide you a free, no obligation quote.
Modern doors are designed to make everyday life easier, safer, and more convenient. One small feature that often goes unnoticed is the AV4 day latch. It is simple to use, but understanding how it works can make a real difference to how you use your door day to day.
If you have a door fitted with an AV4 locking system, this guide explains what the day latch does, how to use it, and when it makes sense to switch it on or off.
What is the AV4 day latch?
The AV4 day latch is a built-in feature that lets you choose how your door behaves when it closes. It gives you control over whether the door locks automatically or stays unlocked until you decide otherwise.
This is done using a small blue latch on the door mechanism. By moving this latch up or down, you can change how the door locks without affecting the main security of the door.
It is designed to balance convenience and security, depending on how you are using your home at that moment.
How the blue latch works
The AV4 system uses a simple blue switch to control the latch mode.
When the blue latch is pushed down, latch mode is activated. In this position, the door can be closed without locking behind you. You can open it again without using a key.
When the blue latch is pushed up, latch mode is deactivated. In this setting, the door will lock automatically when it is closed. To reopen the door, you will need the key.
That is the only difference between the two settings, but it can be very useful in everyday situations.
When to use latch mode
Latch mode is ideal when you are in and out of the house and do not want the door locking every time it closes.
Common situations include:
- Stepping into the garden
- Taking the bins out
- Letting children or pets move in and out
- Expecting deliveries
- Working around the house with doors opening and closing frequently
In these moments, having to carry a key each time can be inconvenient. With latch mode on, the door behaves more like a traditional internal latch, while still being part of a secure door system.
It is worth remembering that in latch mode, the door is not locked. It should only be used when you are at home and actively using the space.
When automatic locking is better
With the blue latch switched up, the door locks itself every time it closes. This is the most secure setting and is recommended when you are leaving the house or when security is the priority.
Automatic locking is useful when:
- Leaving the property unattended
- Going out for the day or evening
- At night before bed
- When you want peace of mind that the door cannot be opened without a key
This setting removes the risk of forgetting to lock the door manually. Once closed, it is secure by default.
Step by step: how to change the latch setting
Changing between latch mode and automatic locking takes only a few seconds.
- Open the door so you can see the locking mechanism on the edge.
- Locate the small blue latch on the mechanism.
- Push the blue latch down to activate latch mode.
- Push the blue latch up to deactivate latch mode and enable automatic locking.
- Close the door to check it behaves as expected.
There are no tools required and nothing needs adjusting beyond the latch itself.
Does latch mode affect door security?
The latch mode does not weaken the door or change the locking system itself. It simply controls whether the door locks automatically when closed.
When latch mode is turned off, the door uses its full locking function as designed. When latch mode is on, the door remains closed but unlocked until you choose to lock it.
Security depends on how the feature is used. It is safe when used correctly and in the right situations.
Common questions about the AV4 day latch
Can I leave the door in latch mode all the time?
You can, but it is not recommended when the property is unattended. Latch mode is best used when you are at home and actively moving in and out.
Will the door still close properly in latch mode?
Yes. The door will close and latch shut, but it will not lock automatically.
Do I still need a key when latch mode is on?
Not to reopen the door. You will only need the key if the latch mode is switched off and the door locks itself.
Is the blue latch easy to knock accidentally?
It is designed to stay in position, but it is a good idea to check the setting before leaving the house so you know which mode it is in.
A small feature that makes everyday life easier
The AV4 day latch is a good example of how modern door systems are designed with real use in mind. It gives you flexibility without complication.
Once you know what the blue latch does, switching between convenience and security becomes second nature.
If you would like help, guidance, or advice about door locks, handles, or mechanisms, the team at Sheerwater Glass is happy to help. You can get in touch through our website to speak to someone who can talk you through your options clearly and simply.
