How to Reset a Lynx Ademco Alarm


A division of the Honeywell Security Group, Ademco is a well-known manufacturer and distributor of electronic security systems for residential and commercial customers. Ademco Lynx series alarms are wireless residential security systems with speakerphone, message center and alarm clock features. If you have a problem with your Ademco Lynx alarm, you can reset the system to factory settings to clear any minor mechanical malfunctions. As long as you know the system installer code, you can reset your Ademco Lynx alarm in just seconds.

Things You'll Need

  • Installer code
  • Enter the four-digit installer code, followed by "888" into the security system control panel to access the voice prompt programming mode of your Ademco Lynx alarm. Note that the original installer code for Ademco Lynx systems is "4112;" if the installer code was changed when your system was installed, enter the new four-digit installer code.

  • Press the "*," "9" and "7" keys in quick succession to reset the alarm system to factory settings.

  • Press "1," "2," "3" or "4" to load the factory-programmed default settings of your choosing. Consult pages 61 and 62 of your installation guide and setup manual (see Reference 1) to view the default programming options. Press "0" if you would like to reprogram the security system to custom settings.

Tips & Warnings

  • Consult your Ademco Lynx installation and setup guide or Ademco Lynx user guide for instructions on how to reprogram your alarm to custom settings after a system reset.
  • You must know the installer code to reset your Ademco Lynx alarm. If you have forgotten your installer code, contact Honeywell customer service for more information.

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