Question:

Why did my smoke detector go off last night 4am and there was no smoke anybody know why?

by  |  earlier

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battery powered

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8 ANSWERS


  1. The wiring may be faulty, or the batteries were loosing life.

    It happens every now and then.


  2. why are you asking this in an Air travel/Airline forum??  This has nothing to do with air travel...direct your inquiry to an appropriate forum.

  3. The battery's dying. Change it.

  4. Smoke detectors will usually make a short, very loud beep about once a minute when their battery is low.

    If it actually went off, though, it's more likely that the ion chamber detected something it perceived was smoke. Bits of very fine dust in the air and even small insects can sometimes cause this.

    If the detector's old, replace the whole thing. They cost less than $10 - it's the cheapest life insurance you can buy.

  5. when batteries get low, they cause the unit to go off. it will go off more often as the batteries continue to go bad. change the batteries/battery.have a good day.

  6. The battery is getting low.

  7. Dying batteries? It might have shorted. Mine were beeping this morning because they need new batteries. Maybe it's just the alert for new batteries.

  8. Probably dust.

    By the way, were you on a plane?

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