How do I change installer code on a Honeywell L5100?
In order to reset or change the installer code on a Honeywell L5100 security system, complete the following steps:
At the Home Screen, select Security > More > Tools > Enter the current Installer Code (default is 4112) > Program > Installer Code. Press "Clear" at the bottom left, then type in a new four-digit installer code on the touchscreen keypad. The system will display the new number to the left. Press “Done” and the system will return to the previous screen. The new installer code has been set.
If you do not have access to the current installer code of your LYNX Touch, power the system down. Upon initial power up, while “SYSTEM STANDBY!” is displayed, press and hold the OFF key until the L5100 stops the system initialization. Press the OFF key a second time and the system will display the keypad. Press the “Clear" key and you will see a blue vertical bar underneath the “Enter Code.” Enter 00 on the touchscreen and the system will move to the Installer Tools Menu. You can now follow the steps above to set a new installer code on your LYNX Touch.
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