Unfortunately, there is no way to turn the unit off from beeping when there is a low battery with the exception of taking it down and removing the batteries.
Replace the batteries to silence the “low battery” beep, or press and hold the test/silence button to turn off the high-CO warning alarm. During an alarm, evacuate immediately and call emergency services. Make sure everyone is accounted for and check for CO poisoning symptoms.
Press the Silence Button: Most smoke detectors have a ``silence'' or ``hush'' button. Press it to temporarily silence the alarm. Note that this usually only works for a few minutes. Replace the Batteries: - Open the smoke detector cover. This may involve twisting or sliding it off, depending on the model.
The beeping sound from your carbon monoxide detector every minute or 30 seconds is telling you that the battery is low and needs to be replaced. Press the reset button and replace the 9 volt battery or 2 AA batteries (depending on the brand of carbon monoxide detector you have such as a Kidde) to stop the beeping.
Never ignore the sound of the alarm! If the alarm is sounding, pressing the Test/Hush button will terminate the alarm. If the CO condition that caused the alert in the first place continues, the alarm will reactivate.
This may silence the alarm for a brief period, but it will reactivate if CO levels remain high.
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.
1 Beep Every Minute: Low Battery. It is time to replace the batteries in your carbon monoxide alarm. 5 Beeps Every Minute: End of Life. This chirp means it is time to replace your carbon monoxide alarm.
Do not unplug your alarm! A First Alert plug-in carbon monoxide alarm will only reset when it is receiving electricity. Press and hold the Test/Silence button for 5 seconds to quiet a plug-in alarm while ventilating. You may have to do this numerous times to give the alarm time to reset.
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. You can also put a unit into low battery hush for up to 12 hours on newer units by pressing the test/hush button.
Random Beeps from Carbon Monoxide Detector
LED lights often indicate the battery level, so check if the battery requires replacing if the detector chirps. Low batteries send signals to chirp or beep once every minute. The presence of carbon monoxide causes many beeps every few seconds.
The beeping sound the low battery alarm makes can become very annoying but can be disconnected by removing the drained battery from your home alarm system panel. Make sure to replace the drained battery with a new one to keep your home alarm system functioning properly.
Without power, the CO detector is useless.
Break through label with a screw driver. Turn the screw to the “OFF” location. This will deactivate the alarm, stop the low battery “chirp” and render the alarm safe for disposal by draining the battery.
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.
Silence feature: When CO reaches alarm levels the alarm will sound—repeating horn pattern: 4 beeps, a pause, 4 beeps, etc. Press and hold the Test/Silence button until the horn is silent. The initial Silence cycle will last approximately 4 minutes.
Battery-powered carbon monoxide detectors
Sealed battery carbon monoxide detectors have the battery sealed inside the unit and this can't be changed. Once the battery has reached the end of its life, the alarm will beep and at this stage the unit should be replaced with a new detector.
The most common meaning of a low battery warning is just that – your security system has been running on battery power for an extended period of time, and the battery is low. Because of this common cause of the warning, it's often recommended to wait up to 24 hours to see if this warning goes away on its own.
Locate the Battery Compartment; there may be a door or plate covering it. Remove the old battery. Some devices may have two to three batteries. If this is the case, make sure you remove and replace all batteries at the same time.
Even after the battery has died, the detector maintains a residual charge that will keep the chirp going for at least seven days. To get the device to stop chirping once the battery has been removed, you must drain this residual charge by holding the test button for 15 seconds.
The chirp will not stop until the unit is powered off. You'll know that it is an end-of-life warning and not a low battery warning because replacing the batteries will not stop the chirp. The chirp will stop only when the alarm is powered off.
Smoke detectors chirp to indicate a low battery. This chirping happens every 30 to 60 seconds for at least seven days.
If the alarm emits a chirp every 30 seconds, it is either an end-of-life alert or a sensor error. If the alarm emits a chirp every 60 seconds, it indicates the battery power is not sufficient to power the unit in full alarm.