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Contact a licensed electrician to replace your unit.

Regardless of manufacturer, all smoke alarms have a limited life of 10 years from date of manufacture.

Press the button on the side of the unit ( 755PSMA4) or pull the alarm unit down ( 755PFM4) to reveal the 9V battery.įor efficiency and to avoid replacing batteries, upgrade to a rechargeable lithium backup alarm such as the 755RLPSMA4. Sometimes, a fast blinking red light could indicate that the alarm is disabled. A blinking red light could also indicate that batteries need replacement or that the smoke detector needs maintenance. Spray insect repellent on a cloth and wipe the ceiling around the smoke alarm to act as a bug deterrent. Most smoke detectors have a red light that blinks every 40 to 60 seconds to indicate normal operation.This helps reduce false alarms and ensure any smoke can easily reach its internal sensing chamber. Download royalty-free stock photos, vectors.

Vacuum smoke alarms to keep them free of dust particles, insects or cobwebs. Search from thousands of royalty-free Flashing Red Light stock images and video for your next project.

Also, it is asked, Why does my smoke detector keep. Reinstall the battery and reconnect the power. For at least 15 seconds, press and hold the test button. Disconnect the power and remove the smoke alarm from the mounting bracket. The alarm should sound indicating the battery is working. Changing the Alarm Clock Turn off the smoke alarm’s electricity at the circuit breaker.

To check the backup battery, repeat the test while mains power is turned off. Press and hold the Test/Hush button for at least 3 seconds until the unit alarms.Ĭontinue to hold for another 10 seconds to confirm all interconnected alarms activate.