The Silence button does not disable the unit. It makes it temporarily less sensitive to smoke. If smoke around the unit is dense enough to suggest a dangerous situation, the unit will stay in alarm or may re-alarm. If you do not know the source of the smoke, do not assume it is an unwanted alarm.
Take the smoke detector off its mounting bracket on the ceiling and disconnect the power cable plugged to the smoke detector. Take out its battery, then press the “Test” button holding it down for 15 seconds. An alarm will sound for a short time, then the alarm will silence.
The smoke alarm will remain silent for up to 15 minutes. If the smoke has not cleared or continues to increase, the siren will start sounding again.
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.
It's a sound many homeowners have heard: the 3 a.m. alarm chirp. Why does it happen? Well, it's a simple matter of the battery's charge level and a home's air temperature. As a smoke alarm's battery nears the end of its life, the amount of power it produces causes an internal resistance.
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.
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.
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.
Consistent Chirping
If a smoke alarm is chirping consistently, one of the following may be the reason: 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.
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.
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.
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.
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.
Power interruptions are common in areas where utility companies switch grids in the early hours of the morning. In AC or AC/DC smoke alarms, a loose hot wire connection can intermittently disconnect power to the smoke alarm. The effect is the same as a power failure. When power is restored, the units may alarm briefly.
Here are some other common causes of false smoke alarms: Smoke from burnt food or cooking. Fireplace smoke or outdoor campfires blowing indoors. Steam and High humidity.
In conclusion, the smoke detector may still be beeping even after the battery is changed because the battery may be low, the smoke detector may be faulty, or there may be dust or other particles in the smoke detector.
A hard-wired smoke detector usually chirps because of 1 of these 3 problems: A dead backup battery. Dust inside your detector. Malfunctioning/old detector.
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.
2. On the bottom of the smoke alarm is a reset button, press it! 3. Keep the reset button held for 30 seconds to reset it and make it stop chirping.
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.
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.