Mar
29

How to change your master code on your Honeywell Ademco System

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Many alarm systems installed in San Diego County are Honeywell or Ademco alarm panels. The master code allows you to arm/disarm the system and add/change additional codes. There are two ways to change your master code on your Honeywell/Ademco security system. You will need to know either the installer code or the system master code. (Default installer code 4112 and master code is 1234).

With the installer code:
Enter Installer code + 8 0 2 + New master code

With the Master code:
Enter Current master code + 8 0 2 + New maser code 2 X (two times)

If you do not know the Installer code you can re-set it by doing the following:
1. Power down the alarm system (un plug the alarm and disconnect the back-up battery)
2. Power up the alarm system
3. Press * and # together on the keypad within the first minute of power up
4. Press * 2 0 then the new installer code
5. Press * 9 9

If you have any additional questions or need help resetting your alarm master code, please call us to have a professional do it for you. Some Ademco/Honeywell panels (older versions) work slightly different so always consult your installer manual before attempting to re-set the code yourself.

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