Re: Alarm keeps chirping even with battery is replaced?
This could mean that the unit is defective or it may need to be replaced...check the date on the back of the device; if it's over 10 years old it must be replaced by code (NFPA72).
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In the event the 9V battery is low, the alarm will emit a short chirp about twice per minute. The 9V battery should be replaced any time the yellow "low battery" indicator on the alarm unit is lit or every 12 months.
What you plugged back in is the ac power to pump alarm
Be sure you are using a well known brand battery. The store brands, in my my opinion generally are not quite up to par. Try this and see if the chirp will stop. Thanks for asking me.
He said it had a new battery so he already did that and why would you service a $12 throw away smoke alarm? This FIREX he identified is the 4618 and will also chirp while the LED light blinks, chirp is about 30 seconds after blink if the unit itself needs to be replaced because there is something wrong with it as opposed to a different chirp pattern for battieries. If still unerwarrantee FIREX will replace otherwise go buy a new one.
They only chirp for two reasons:
1. The sensor is past its useful life and needs replaced
2. There is a power issue with the battery. Even the ones that are hardwired into the electrical system need a battery.
This is the troubleshooting information from the kddie site. The problem is usually related to an older battery or improperly installed battery. You might also have to do a reset as described below. If battery and cleaning don't work, it might be time for a replacement - short money to keep you and your home safe.
The battery may be loose, or improperly installed. Verify that a battery of the recommended type is securely installed. Make sure to use a battery with a use-by date no later than four to five years in the future. Check that the battery is snapped in completely so it cannot be shaken loose. It’s possible that battery connections may not be making good contact with the battery. Disconnecting and re-connecting the battery once or twice will likely fix this condition. On units with a front-load battery, be sure that the battery compartment door is closed completely as well. Loose white neutral wire can cause an echoing chirp. (From one unit to the next)
The smoke alarm sensing chamber may be dirty. Dust and insects can collect in the sensing chamber of the alarm. An accumulation of dust in the sensing chamber can cause the unit to chirp. It is good practice to clean the smoke alarm when you change the battery. Static electricity from the ac quick connector attracts dust and can cause false alarms. Cleaning smoke alarms: To clean your alarm, remove it from the mounting bracket as outlined here. You can clean the interior of your alarm (sensing chamber) by using compressed air or a vacuum cleaner hose and blowing or vacuuming through the openings around the perimeter of the alarm. The outside of the alarm can be wiped with a damp cloth. After cleaning, reinstall your alarm, verify the green LED is on and test your alarm by using the Test Button. If cleaning does not restore the alarm to normal operation, the alarm should be replaced.
Check environmental conditions:
Humidity, steam and condensation can cause false alarms. Causes of condensation are:
Extreme temperatures changes.
High ambient humidity.
Unit being installed in an uninsulated electrical box mounted on a ceiling beneath an attic. If this condition exists you’ll want to move the alarm. Click here to see the correct alarm placement in your user’s manual found in our Download Center.
Check to see if there is a cooling/heating register, a ceiling fan or an open window within 3 feet of the alarm. If there is, move the alarm away from the source of the increased airflow. Click here to see the correct alarm placement in your user’s manual found in our Download Center.
Check the temperature of the room. Smoke alarms operate at 40 degrees to 95 degrees Fahrenheit. Carbon monoxide alarms operate at 40 degrees to 100 degrees Fahrenheit.
Reset the alarm. Some current model 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 does not and must be manually reset to clear the error. To reset an AC unit with a battery backup: Turn off the power to the smoke alarm at the circuit breaker.Remove the smoke alarm from the mounting bracket and disconnect the power. Remove the battery. Press and hold the test button for at least 15 seconds. The unit may chirp or alarm for a few seconds before going silent.Reconnect the power and reinstall the battery. The unit will chirp once when the power is restored and should not chirp afterwards. To reset a DC only unit: Remove the battery. Press and hold the test button for at least 15 seconds. The unit may chirp or alarm for a few seconds before going silent.Reinstall the battery. The unit will chirp when the battery is first connected but should not chirp afterwards.
An electrical condition may be causing the power to the unit to be interrupted. If the AC power to the unit is interrupted, the unit will chirp when the power is restored. This could be caused by power surges. If the chirping seems to occur at about the same time in the evening or morning, it could be due to a surge created when the power company switches electrical grids to meet demand. Check to see if the chirp (or chirping) occurs when something else in the house is turned on such as an exhaust or attic fan, a heater, etc. If the smoke alarm is connected to a circuit with such a device, the alarm may chirp when the other device is switched on. If this is the case and the device is plugged into a wall outlet, move it to another outlet on a different circuit. If it is a hardwired device, have an electrician investigate it. These conditions can be minimized by installing your alarms on a dedicated circuit in compliance with NFPA requirements.
Replace the alarm. If none of these conditions exist and the suggestions don't alleviate the symptom, the alarm should be replaced. Age may be a factor. Smoke and heat alarms should be replaced every 10 years, and carbon monoxide and combination alarms should be replaced every 7 years. Most of our alarms have a 5 year warranty from date of purchase (check your user manual for details). A date code is stamped on the label attached to the back of the unit.
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