Why does my fire alarm constantly chirp or beep?
Most smoke alarms will chirp at regular intervals to indicate their batteries are low. If your fire alarms seem to be making noises randomly, there could be a number of things going on:
The battery may be loose or improperly installed – make sure the battery fits properly in the battery slot. Otherwise, the connections may not make good contact with the battery. If the battery wasn’t put into the slot properly, just pop it out and put it back in.
The fire alarm cover may be dirty – over time, dust and dead bugs can collect in the sensor chamber of your fire alarm, causing it to chirp. Make sure you keep the sensor chamber clean (the easiest way to do this is to vacuum it out every time you change the batteries). If the room in which you want to install the smoke detector is especially dusty, install an ionization fire alarm so the dust doesn’t affect it.
The fire alarm may need to be reset – most new electronic fire alarms come with logic boards that tell the alarm to chirp when the battery gets low. Unfortunately, replacing the battery doesn’t always stop the chirping! Sometimes you need to hit the RESET button in order to ensure the smoke detector works properly.
Power to the fire alarm has been interrupted – a power surge could interrupt power to the fire alarm, causing it to chirp when the power is restored. Hitting the RESET button should take care of the problem.
The fire alarm may need to be replaced – if all else fails, you may need to have your fire alarm replaced. Fortunately, fire alarms are relatively inexpensive and replacing them is no problem.
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