Carbon Monoxide Alarms: 7 Signs Your Home Alarms Need Attention

Fire and carbon monoxide alarms only protect you if they work properly and sit in the right places. Spend ten minutes walking round your home and you will quickly know whether yours need attention. Here are seven signs to look out for.

1. A short chirp every 30 to 60 seconds

That occasional chirp is rarely random. It often signals a low battery, though patterns vary between models, so check the manual. If your alarm takes replaceable batteries, fit the right fresh ones. With a sealed long-life model, follow the manufacturer’s guidance, because the warning may mean the whole alarm is due for replacement.

2. Chirping that carries on after a new battery

A chirp that continues after a battery change can be the end-of-life signal. Sensors wear out over time, and the alarm may use the same sound to tell you it can no longer be trusted. Check the label on the back for the replacement date.

3. Nothing loud happens when you press test

Press the test button as directed in the manual. If you hear nothing, or the sound is weak or distorted, the horn or sensor may have failed. Dust and ageing electronics are common causes. A gentle clean can help, but if the problem continues, replace the alarm.

4. The alarm is past its replacement date

Alarms do not last forever. Most carry a date on the back, and many need replacing after about ten years. Do not keep one in use just because it still lights up.

5. Alarms in the wrong places

Fire alarms should be on each level of your home, and carbon monoxide alarms near fuel-burning appliances and bedrooms. Avoid fitting them right next to a kitchen or bathroom, where steam and cooking fumes can trigger false alarms.

6. Frequent false alarms

If an alarm keeps sounding for no obvious reason, dust, insects or poor placement may be to blame. Clean it according to the instructions, or move it. Never remove the battery and forget about it.

7. Signs of carbon monoxide risk

If a carbon monoxide alarm sounds, open doors and windows, turn off appliances, leave the property and call for help. Headaches, dizziness and nausea in more than one person at home are also warning signs. Get gas and heating appliances serviced by a registered engineer every year.

Make it a habit

Test your alarms once a month, and put a reminder in your phone. It takes seconds and could save a life.

Looking for more? Read our guides to the burrowcore home style, creating a reading nook, or head back to the Brew and Browse home page.