How to Reset Home Fire Alarms

Written by kallie johnson
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How to Reset Home Fire Alarms
A smoke detector alerts homeowners to a potential fire. (ballyscanlon/Photodisc/Getty Images)

A home fire alarm, more commonly referred to as a smoke detector, alerts homeowners to a potential fire. A loud alarm sounds when the detectors senses smoke. If the unit begins malfunctioning, or the alarm is beeping and there is no danger, the unit may need to be reset. If, after resetting the alarm, the beeping persists, the batteries should be replaced. Many fire detectors beep intermittently when the battery is low to remind the homeowner to replace it. Replace the unit promptly if resetting and replacing the battery don't solve the problem. The unit may be defective.

Skill level:
Moderately Easy

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Instructions

  1. 1

    Look at the smoke detector. The reset button is the recessed or red button. Push this button to reset the device. If you do not see a reset button, press and hold down the test button for 10 seconds. The test button is the largest circular button on the smoke detector.

  2. 2

    Push the test button one time. The smoke detector should begin beeping, indicating the unit is working. Press the test button a second time to quiet the alarm.

  3. 3

    If the smoke detector still is not functioning properly, remove it from the ceiling or wall by lifting or twisting it away from the base. The process will vary slightly based on the brand of smoke detector.

  4. 4

    Locate the battery compartment on the backside of the detector. Remove the door covering the battery housing unit.

  5. 5

    Remove and replace the batteries. Follow the +/- indicators in the battery housing unit for proper battery placement. Most types of smoke detectors use AAA, AA or 9V batteries. Slide the battery cover back over the battery housing unit.

  6. 6

    Place the smoke detector back on the base by sliding or twisting into place.

  7. 7

    Push the test button one time. The smoke detector should begin beeping, indicating the unit is working. Press the test button a second time to quiet the alarm.

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