How often should you test your alarms? Keeping your alarms in working order is one of the simplest yet most important steps you can take to protect your home. While installation is essential, ongoing maintenance is what ensures your alarms will respond when needed.
With busy schedules and day-to-day life, testing alarms can often be forgotten. To help you stay on top of your home safety, we’ve put together a clear guide on how often you should test your alarms, why it matters, and how to do it correctly.
Why Regular Testing Is Essential
Smoke and heat alarms are designed to provide an early warning in the event of a fire, giving occupants valuable time to react. However, like any electronic device, they need maintenance to ensure they are working to their full potential.
- Power Issues: Batteries can deplete, and mains-powered alarms can still fail if there is a fault or disconnection. Also, if a mains-powered alarm loses power, it will rely on its own battery back-up. Doing this long term can cause the alarm to become non-functioning.
- Sensor Reliability: Dust, insects, or debris can interfere with the sensor, reducing its effectiveness. Whilst our dust compensation technology, and ultrafine insect mesh, eliminates most events of sensor faults, hoovering the alarm vents is still recommended.
- Hardware Issues: Without routine checks, faults can go unnoticed until it is too late. An example of this could include things such as an issue with the sounder resulting in a reduced sound output which may not have the desired effect on sleeping occupants.
How Often Should You Test Your Alarms?
Alarm Test Diagram
To ensure your alarms are functioning correctly, you should follow these guidelines:
- Monthly Testing: Test every smoke and heat alarm at least once a month. This follows guidance from the British Standards BS 5839-6:2019+A1:2020.
- After Installation: Always test alarms immediately after fitting or replacing new alarms.
- After Maintenance: Test alarms following any cleaning, battery replacement, or adjustment.
- After Absence: If you have been away from the property for an extended period, test alarms upon return.
How to Test Your Alarms
Firstly, make sure everyone in the property is aware you are about to test the alarms to avoid unnecessary concern.
The Test Procedure:
- Carry out a visual check. Mains-powered alarms should show a solid green light to indicate power. Flashing lights or beeping may indicate a fault such as low battery or dust build-up.
- Press and hold the test button for up to 10 seconds.
- Wait for the alarm to sound loudly.
Pressing the test button simulates smoke or heat entering the sensor, meaning it checks the sensor, electronics, and sounder all at once.
If your alarms are interconnected:
All alarms should sound within around 10 seconds of the first unit activating. Once released, the initial alarm will stop, while others may continue briefly. This confirms the interconnection is working correctly.
What If an Alarm Fails the Test?
If your alarm does not sound during testing, it should be addressed immediately.
- Check the Power Source: Replace the battery if applicable or ensure the mains connection is active.
- Inspect the Alarm: Make sure the unit is securely fitted and free from visible damage.
- Replace if Necessary: If the alarm continues to fail, it should be replaced without delay.
All Aico alarms have a ten-year lifespan. To know the date your alarms will need replacing so when the time comes you are prepared, simply check the side of the unit, all Aico alarms will have a replace by date sticker.
Alarm Testing FAQs
So, how often should you test your alarms?
At a minimum, once a month. Additional testing should be carried out after installation, maintenance, or long periods away from the property.
As a manufacturer we recommend to carefully vacuum around the vents to remove dust and debris. Doing so can reduce the likeliness of nuisance alarming.
Can I test my alarm with smoke or a candle?
No. This is not recommended and can damage the alarm. Always use the test button.
What should happen when I test an interconnected system?
All alarms should sound together, confirming the system is linked and working correctly.
For more information, look at our ‘How To Test Smoke Alarms’ guide.
