Smoke Detectors

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Smoke Detector Facts - Check Smoke Detectors - Who Invented The Smoke Detectors - How Hard Wired Smoke Detectors Work - Problems with Electric Smoke Detectors - Troubleshooting Tips for Smoke Detectors

Problems with Electric Smoke Detectors


Smoke detectors powered by electricity are mostly preferred by homeowners over the battery-operated units. These AC-powered smoke alarms, however, may be backed up with a battery in cases of power outages.

As in any type of electrical devices, smoke detectors even the expensive brands may also encounter problems from time to time. This is to be expected but what’s more important is that we know how to detect troubles. By being in the know of possible problems, we can immediately find solutions or call a technician to have the smoke detector properly checked.

Smoke detectors need to have regular maintenance at least once every month. The old units that have reached their 10th year should already be replaced. In this way, you ensure that your smoke alarms are reliable and are working well. Remember, this device is vital in keeping our homes safe from fires.

Testing the smoke detector is the best way to ensure its proper functioning. Depress the test button every month to check if the alarm sound is okay in all areas of the house where smoke detectors have been installed. Check the smoke sensor by using a candle that’s just been blown out and then fanning it to lift the smoke upwards.

Below are common problems involving smoke detectors that you should be aware of.

  • Chirping sound. This sound signals that your smoke detector’s battery is already weak and therefore, needs to be replaced. In replacing the battery, open the cover and take out the old battery inside. Make sure to clean the inner part as well before putting the new battery and putting back the cover.

  • Loose wirings. When the connections of the smoke detector become loose, it will also result in a chirping sound. If your unit is a hard wired type, check for loose connections and tighten them. If they’re damaged, call for an electrician to have it repaired.

  • No sound. If your smoke detector does not emit an alarm sound, check if your battery is new or if your connections are properly connected. If they’re okay and you see no problem, then perhaps the dust buildup inside is the problem. If there’s still no sound after you’ve done the first two steps, it may be time to replace your unit.

  • False alarms. For alarms that sound off even without smoke, the unit’s position may be the problem. Keep in mind that smoke detectors should be at least 20 feet from ovens and toasters and 10 feet away from heaters, vents, furnaces and bathrooms.

  • Dirty unit. Dust and dirt can build up inside the smoke detector. Other times, insects may also get inside and clog the unit. These often results in the smoke detector being unable to sense smoke or sound off an alarm when smoke is present. For this problem, cleaning is required to solve the problem. Regular cleaning of the interior part of the unit should be done at least once every month. If you’re able to properly maintain the unit, it will function well for its lifespan.