Asked by: Ewan Woznia
asked in category: General Last Updated: 7th February, 2020

Why does my Firex smoke alarm keep going off?

A dying battery or unreliable power supply is the most common cause of false alarms. FireX recommends replacing the battery in the smoke alarm at least once a year to ensure proper operation. If the unit is wired to electrical power, a problem with the power supply can lead to false alarms and smoke alarm chirping.

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Regarding this, why do my smoke alarms keep going off for no reason?

They're triggered by foreign objects interacting with parts inside the detectors. This means that anything that can float into your smoke detector, like vapor, steam, smoke and large puffs of dust, can trigger your smoke detector. This is why it may go off when your cooking, even if you're not burning anything.

Likewise, how long do Firex smoke alarms last? 10 years

Consequently, how do I stop my Firex smoke alarm from chirping?

Switch off the power for the smoke alarms on the circuit panel. Remove your smoke alarm from the ceiling bracket then detach the power connector. Take out the battery, then push and hold the “test” button for around 15 seconds. The smoke alarm might chirp or beep for a couple of seconds then go silent.

Why does my smoke alarm keep going off at night?

This battery characteristic can cause a smoke alarm to enter the low battery chirp mode when air temperatures drop. Most homes are the coolest between 2 a.m. and 6 a.m. That's why the alarm may sound a low-battery chirp in the middle of the night, and then stop when the home warms up a few degrees.

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