How Often To Replace Electric Smoke Detectors. Disconnect the old wiring harness from the existing wires. Smoke detectors need to be replaced every 10 years, and smoke detector batteries should be replaced every 6 months.
This could affect how well the smoke alarm will function. If you find any indication that the smoke detectors in your home are not working properly, call damyans electric right away to schedule an inspection. To prevent that from happening, you should replace the smoke alarm batteries every year;
Here is what you should know about your smoke detector:
If the alarm does not sound when you push the button to test it, then the unit is faulty and you should replace it. Experts recommend replacing all connected smoke alarms at the same time, even if some are working. Loosen the screws that hold the mounting bracket in place. Smoke detectors need to be replaced 10 years from their date of manufacture, according to fema.