Press and hold the test/silence button for 20 seconds. You'll find this on the front of your detector. Reconnect all power sources (reconnect the wiring or plug back into the outlet). Your alarm should now be reset.
Residual Charge: Some alarms may retain a small amount of charge even after the batteries are replaced, which can cause them to beep until the charge is fully depleted.
Disconnect all power sources (take out the battery, if it is a plug in alarm remove it from the outlet, and if it is hardwired alarm disconnect it from any wiring). Hold the test/silence button for 20 seconds.
Press the hush/silencing button. It will silence the entire interconnected system. The button may also say “test.” It should silence all the alarms immediately unless there's still smoke and debris. It will reset in eight minutes, given that the smoke and debris have dissipated.
Low Battery or End-of-Life: This type of chirp indicates it is time to replace your smoke alarm's batteries or the smoke alarm itself.
Dust and debris can easily accumulate inside your hard-wired smoke alarm, causing that incessant chirping sound. This build-up can interfere with the sensing chamber, triggering false alarms. To prevent this, make a habit of cleaning your smoke detectors regularly.
When you change the batteries on your smoke detector, it may chirp for up to 10 seconds. This chirping is normal and signals that the device is receiving fresh power. The same thing may happen to hardwired alarms when you turn on the device's power.
Press and hold the test button for 15-30 seconds. This will fully reset the smoke alarm and drain any charge left inside.
Accumulation of Debris
A smoke alarm is a sensitive device that helps to detect smoke particles from different sources of fire. Debris such as dust or soot often produced by burning matter can accumulate on the gadget thereby triggering the alarm even when there is no actual fire.
If the alarm continues to go off and no smoke is present, the cause may be: There may be insufficient battery power. Try another battery. Problems with voltage or insufficient electrical power (brown out) may cause a continuous weak sounding alarm.
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.
The Silence Feature can temporarily quiet an unwanted alarm for up to 15 minutes. To use this feature, press the “Push to Test/Silence” button on the cover. If the unit will not silence and no heavy smoke is present, or if it stays in silence mode continuously, it should be replaced immediately.
Test the detector to ensure that the batteries are properly installed. Smoke Detector: Press and hold the Test button for about 30 seconds or until the siren sounds. The siren verifies that the smoke detector is working properly.
Some smoke alarms have a processor that retains certain error conditions, such as a weak battery. The error condition should reset when the battery is replaced, but sometimes it doesn't and must be manually reset to clear the error.
If you hear your smoke detector beeping in brief chirps every 30-60 seconds, it's probably time to replace the battery. Or you might need to clean out the dust, check the battery connections or replace the whole smoke alarm.
Make sure the battery is installed correctly, then push and hold the test/reset button until it chirps.
If you have this type of detector – a BKK or First Alert hard wired detector like this one…. … and the green light is constantly blinking, that means that the smoke alarm at some point went off, and the detector needs to be reset. The green light will remain blinking until you reset the alarm.
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.
Why did my fire alarm randomly go off in the middle of the night? This is likely due to one of the common causes like low battery, dirt buildup, humidity, or insects interfering with the sensor.
This chirping happens every 30 to 60 seconds for at least seven days. When you hear this, it means the battery needs replacing.