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What to do if you have a nuisance or false alarm

Aug 15, 2015

How to temporarily silence your alarms: 

WARNING.  DO NOT USE THIS FEATURE IF A FIRE IS PRESENT. ONLY USE THIS FEATURE AFTER YOU HAVE CONFIRMED THERE IS NO FIRE DANGER PRESENT.

The Hush® Feature of most alarms provides the capability of temporarily desensitizing the smoke alarm circuit for up to 8 minutes. This feature is to be used only when a known alarm condition, such as smoke from cooking, activates the alarm.

  • For hardwired or wirelessly-connected alarms, only hushing the initiating unit will silence all other interconnected alarms (see below to find the initiating unit).
  • The smoke alarm is desensitized by pushing the “Test/Hush” button on the smoke alarm cover. If the smoke is not too dense, the alarm will silence immediately.
  • The smoke alarm will automatically reset after approximately 8 minutes and sound the alarm if particles of combustion are still present.
  • The “Hush” feature can be used repeatedly until the air has been cleared of the condition causing the alarm.
  • Pushing the Test/Hush button on the alarm will end the hush period.

How to clean and reset your alarms: 

If you have hardwired alarms, the first step is finding the initiating unit, as that is the key to stopping all of the interconnected units:

  • To find the initiating unit, look for one that is flashing RED at least once every second while in alarm mode, then follow the reset procedure below on that unit. 
  • If the alarm stopped on its own before you could find that flashing light, please see the owner’s manual to see if the alarm model has an alarm memory to tell you which unit was initiating.
  • If there are no obvious signs of a fire, the alarm should be cleaned before being reinstalled. False alarms are most commonly caused by something interfering with the sensor.
  • To clean, after disconnecting the alarm and removing any removable battery: hold the unit on its edge and thoroughly vacuum out the gap between the front cover and the back plate all the way around the perimeter with the crevice tool attachment of a vacuum cleaner, or blow through the same gap with compressed air.


Resetting a hardwired unit with a removable battery backup

To reset a hardwired unit with a battery backup, perform the following steps: 

  1. Turn off the power to the smoke alarm at the circuit breaker.
  2. Remove the smoke alarm from the mounting bracket and disconnect the power.
  3. Remove the battery (for a sealed-battery model, click here to learn more).
  4. Press and hold the test button
  5. Reconnect the power and reinstall the battery. NOTE: The unit will chirp once when the power is restored and should not chirp afterwards. 


Resetting a removable battery-only unit

To reset a battery only unit, perform the following steps:

  1. Remove the battery (for a sealed-battery model, consult your user guide).
  2. Press and hold the test button
  3. Reinstall the battery. NOTE: The unit will chirp when the battery is first connected but should not chirp afterwards.
 
If the problem persists, please call Product Support at 1-800-880-6788 (Hours are M-F from 8:00 a.m. - 5:00 p.m. EST). 

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