In most cases, you can find the 'hush' button on the smoke detector's cover. However, if you have trouble finding the button or are not sure if your detector has the feature, check out your user manual.
The smoke alarm will automatically reset after approximately 7 minutes and sound the alarm if particles of combustion are still present. The "HUSH" feature can be used repeatedly until the air has been cleared of the condition causing the alarm. Pushing the Test/Reset button on the alarm will end the hush period.
The Hush® feature of most alarms provides the capability to temporarily lower the sensitivity of the smoke sensor for up to 10 minutes. This feature should be used only when a known alarm condition, such as smoke or heat from cooking, activates the alarm.
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.
The most likely reason smoke detectors go off unexpectedly is that people aren't changing the batteries in them often enough. In most sensors you might think of, the strength of the signal goes up when they detect what they're supposed to. Common causes of smoke detector false positives around the house.
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.
A solid green light on your smoke detector indicates that the device is on and operating normally.
Most hard-wired smoke detectors use a 9-volt battery that is supposed to kick in if your home loses electricity. When that battery is running low, your detector alerts you with a chirp that it's running low. Replacing the battery solves the problem.
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.
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.
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.
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.
The only way to tell is to put your ear next to it and listen for the chirp. The smoke alarm, furnace alarm, or carbon monoxide alarm alarm is chirping every 30 seconds or so, but it's hard to tell which direction the sound is coming from.
If your detector or alarm has a blinking or steady light with no audible alarm sound, this typically indicates that the unit is receiving power.
For most residential smoke detectors, blinks are common; you need to be conversant with the colors showing. Different smoke alarms use the green and red LED to indicate the device's power status such that a flashing green means low battery while a constant blink means AC power is connected.
If you have changed the batteries and tried the circuit breaker, but the beeping persists, you may need to try resetting the detector(s): Use the reset button: most smoke detectors have a red reset button. Hold the reset button down for approximately 15-20 seconds.
Hardwired smoke detectors (which typically include a backup battery) are subject to similar issues as those that operate on a battery only. However, hardwired units often require resetting after problems are addressed. On most, simply hold the reset button for 15 to 20 seconds to silence the noise.
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.
The most likely reason for an alarm sounding - without the presence of smoke or a fire - is dust inside the cover unit. If every alarm on the system is sounding, a rapidly flashing red light on the cover of one of the units will show where the alarm was triggered.
Low Battery
As the battery in a smoke alarm gets weak, the smoke alarm will “chirp” about once a minute to let you know that the battery needs to be replaced. Note: Only the device with a low battery will chirp. The other interconnected alarms should be silent.
The mains powered smoke alarms have a green indicator. Smoke Alarms have a red light that goes off every 40 to 60 seconds to tell you if they're working. When the smoke alarm is activated, the red light flashes continuously.