The battery may need to be replaced. An alarm will chirp every 30 to 60 seconds for a minimum of seven days. With a "low battery" announcement, disconnect the unit and replace the batteries.
Remove the smoke detector from the base. Open the battery compartment and remove the battery. Press and hold the test button for 30 seconds. Place the battery back into the device (or replace it if it's older).
Smoke alarm chirping intermittently
Replace the battery* in your smoke alarm. Ensure you are using the correct battery type and are inserting it the correct way around. If the battery is low, it is more likely to sound at night as a drop in room temperature can impact the battery's ability to power the alarm.
A smoke alarm will eventually stop chirping if you do nothing. Once the battery has run out completely, the device will switch to residual power. Eventually, this will also drain and the device won't have enough power to beep and let you know it's out of power. You should change the battery before this happens.
Newer smoke alarms keep some errors in the processor. The smoke alarm must clear errors after the battery is changed, but it might continue to chirp even after you change the batteries. This usually occurs in electrical powered smoke alarms with a battery backup.
The "HUSH" feature has the capability to temporarily desensitize the smoke alarm circuit for approximately 7 minutes. This feature is to be used only when a known alarm condition, such as smoke from cooking, activates the alarm. The smoke alarm is desensitized by pushing the "HUSH" button on the smoke alarm cover.
Most battery powered smoke detectors will beep for a minimum of 30 days before the battery dies. You'll know the battery is losing charge if you hear consistent beeping every 30 to 60 seconds.
This battery characteristic can cause a smoke alarm to enter the low battery chirp mode when air temperatures drop. Most homes are the coolest between 2 a.m. and 6 a.m. That's why the alarm may sound a low-battery chirp in the middle of the night, and then stop when the home warms up a few degrees.
Press and hold the test button on the smoke detector. It can take a few seconds to begin, but a loud, ear-piercing siren should emanate from the smoke detector while the button is pressed. If the sound is weak or nonexistent, replace your batteries.
The green light on my smoke alarm has gone out, what does this mean? The AC power has been interrupted. Check the circuit breaker and AC wiring to correct the problem.
If your battery is dying, the current that's flowing through your sensor also goes down. And so you can get a false positive. People often change the battery when they move into the house and then never touch it after that.
Many alarms have a “Test” or “Hush” button on the cover. Hitting this will silence the alarm for 8 minutes before it reactivates. If the smoke has been cleared by that time, the alarm should not sound again.
Many people consider it a difficult job to do. Most people ask themselves, “can I remove a hardwired smoke detector?” The answer is you can！ If you have to stop the hard-wired smoke detectors from beeping, you must unplug them from the clip and remove the battery.
Part 2 of 3: Installing a New Battery for Wired Detectors. Turn off power to your wired smoke detector. Wired smoke detectors are connected directly into the power supply of your house, which is sometimes also called the mains.
Your alarm manufacturer may have included a blinking red light to let you know it's time to test the alarm again. The Batteries are Low: Usually accompanied by a loud beep, a blinking red light could mean the batteries in the unit are low. Consider adding fresh batteries and running a test to make sure it's working.
Smoke detector shows steady green light – no alarm
Battery and electrical power smoke detectors will usually have a steady green light to let you know the detector has electrical power and is in working order.
What does it mean? This is the power indicator light: First Alert and BRK alarms have a power indicator light to show you that your alarm is receiving power. Some alarms have a red or green light that blinks every few minutes, while other models blink rapidly or shine a solid light.
Disconnect the alarm and remove its battery. Holding the alarm by its edge, use a keyboard cleaner to remove debris on the side of the device. Press and hold the test button for five seconds. Reconnect the device to power and its backup battery.
Taking the battery out of a smoke alarm will not make it stop beeping. Even after the battery has died, the detector maintains a residual charge that will keep the chirp going for at least seven days.