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How to Stop Fire Alarms From Beeping and Chirping

How to Stop Fire Alarms From Beeping and Chirping

Is your beeping or chirping fire alarm on your last nerve? Thankfully, this incessant alert from your fire alarm often indicates a low battery, which is a quick fix. But that’s not always the case.

Sometimes, a fire alarm will continue beeping and chirping, even after the battery is replaced, leaving you desperate for a fast solution to finally stop the sound. So, what’s the key to how to stop a fire alarm from chirping? With our simple fixes and tips, you can finally quiet your alarm for a peaceful yet protected home.

Why Do My Fire Alarms Chirp and Beep?

Why Do My Fire Alarms Chirp and Beep

The first step to figuring out how to stop a fire alarm from beeping is understanding why it’s beeping in the first place. There are many reasons why you may be hearing that beeping and chirping sound, and we are breaking down each to finally answer the question, “why is my fire alarm beeping?”

Your Alarm Isn’t Installed in the Right Place

While it’s important to have fire alarms in every room in your home to ensure the safety and security of your space, installing them in the right spots in those rooms is essential. Keep in mind when installing alarms that they must be at least 3 meters from cooking appliances. Remember - doing your due diligence and following installation instructions is key to reaping the benefits of fire alarms.

Battery Peg or Pull-Tab is Impacting the Alarm

Wondering, “why does my fire alarm keep beeping?” It may be due to the peg or pull tab. When you change the batteries on your alarm, you may simultaneously have adjusted the peg or pull tab. Typically, when removing a battery, the security peg will be pulled out. If it’s not pushed back in after replacing the battery, this may cause the alarm to chirp and beep. Similarly, with a pull tab, if you didn’t remove the pull tab upon installation, it will beep to alert you to do so.

Battery Isn’t Installed Right

If your alarm is improperly installed, it may result in a beeping or chirping sound. This is a way to notify you that the alarm isn’t working as it should due to its improper application. For your safety and security, make sure all your alarms are properly installed to ensure that they are functioning to the best of their ability.

Battery Drawer Might Be Open

One of the simplest answers to why do fire alarms chirp is that the battery drawer was left open. It’s necessary to change the batteries on fire alarms to make sure they are up and running at all times, but it’s also key that it’s properly installed in the slot and the drawer is shut. This will protect the battery, and your alarm will let you know that it’s not with that unwanted chirping and beeping we know all too well.

The Temperature is Disturbing the Fire Alarm

Fire alarms, at their core function, are in place to detect when a temperature drastically rises. For this reason, when there are large fluctuations in the temperature or humidity in your home, this may cause the alarm to sound, even though there is no fire. This often happens in the case the alarm gets too cold, such as in unheated attics or basements. Or, on the other hand, if it’s in a steamy bathroom. To avoid this, keep the fire alarm near doorways so that they experience airflow and better detect when there is actual danger and not just an unthreatening temperature change.

Fire Alarms Chirp and Beep

Sensors May Be Interrupting the Light Beam

Some smoke alarms incorporate small light sensors that are highly sensitive to surrounding substances. This means small particles, like dust or pollen, can actually impact the light beams of these sensors, causing them to sound off. To avoid this, clean off your smoke detector to avoid particles from building up.

Another Detector May Be The One Chirping

With many homes having more than one detector, it can be hard to determine which one is chirping. So, while you may change the battery on your fire alarm that you think is making the sound, it could be a completely different device in your home, such as a carbon monoxide alarm or even your morning alarm clock.

Alarm Errors Can Be the Problem

With more high-tech, smart smoke detectors, the alarm system actually saves errors in the processor. Sounds fine, right? While this helps the alarm adapt, the errors can actually build-up, causing the alarm to go off. Wondering how to get a fire alarm to stop beeping in this case? Restarting the alarm is a quick, simple fix!

Check Your Electrical Breaker Line

So, have you checked all the other options for why your alarm is beeping and it’s still going off? It may be time to check your electrical breaker line. Look for a “smoke alarm” label on your breaker, turn it off, and then turn it back on after a few minutes. Did the alarm stop? You’ve solved the issue! If you want to be sure the beeping is handled, you can head back over to your alarm and hit the test button. If it sounds off briefly and then stops, it’s up and running as it should.

How to Reset The Alarm

Occasionally, after replacing a battery in your fire alarm, you’ll need to restart the alarm, too. This is to clear any error conditions it may have as a result of the old, dead battery. While it typically resets itself, if you’re experiencing a beeping or chirping, your alarm might just need a quick manual reset.

In order to reset your alarm, you should:

  • Take out the battery.
  • Press and hold the test button. Do so for about 15 seconds. The alarm should beep for a few seconds and then stop.
  • Place the battery back in its place. The alarm should briefly beep when it’s first put back in and then stop.

How Often Should I Change Batteries in My Alarm

How Often Should I Change Batteries in My Alarm

While we are on the topic of how to stop a fire alarm from beeping, let’s refresh the battery life of your alarm. With old batteries being the primary culprit for a sounding fire alarm, knowing when to replace yours is key to not only preventing that unwanted sound but keeping you and your home safe from the threat of a fire. The basic rule of thumb is to replace batteries at least once a year and replace the alarm itself every ten years. It’s an easy task and one you should stay on top of for your own safety.


For the safety and security of every home, fire alarms are a must. With many homes featuring multiple fire alarms, understanding their signals and cues and why do fire alarms chirp is essential to a peaceful, well-functioning alarm system, and gaining knowledge about why a fire alarm is going off and how to stop it is a great place to start.

Whether you need help with an existing alarm system or are looking for a new option to secure your home, our experts at Forbel are here to help. For more information on our fire alarm services and to request a free quote, click here.



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