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Thanks for all of your info, how/can I replace the detector? I have false alarms now, I done the test and cleaned, and as you know, first alert is no help.
Maybe I can reset the entire device and start over, any suggestions
Is this a good question?
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There is very little you can do to overcome an alarm which is firing off sporadically. This could be dust collected within the detectors sensor area or the sensor its self has failed.
Here's a simple image on how your smoke detector works
Ionization smoke detectors use a small amount of radioactive material, americium-241, to detect smoke. So while the Americium-241 half life is quite long, the sensor plates can degrade over time. Sadly it's time for new detector if dusting it out doesn't help. Do make sure you dispose detector properly as it shouldn't get into our water or ground.
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@troyfralick here us how to reset it but it sounds more like an issue with the CO sensor.
by oldturkey03