Electronic Alarms and Home Security Devices - Ademco 4120XM

Doityourself.com community forum was created to provide answers to all questions related to home improvement and home repair. Doityourself community can help you find information about how-to topics on small fixes to large remodeling projects. With comprehensive how-to content and expertly moderated community forums DoItYourself.com makes it easy to tackle even the most complex home improvement projects.



PDA

View Full Version : Ademco 4120XM

Franson
09-11-06, 01:35 PM
In my new home a Ademco 4120XM alarmsystem is installed, with 3 Ademco 6128 LCD keypads. Unfortunately, no installer/master code known. Is there a way to reset the system?
Help is needed here.
RGDS, Franson, the Netherlands

Pete OldNavy
09-11-06, 01:59 PM
Try disconnecting the battery and unplug the transformer.
Now plug in the transformer and depress the and [#] keys at the same time within 30 seconds of power up.

Manuals can be found here.

http://www.alarmworks.com/ademco1.html

Good Luck!!!
MrRonFL
09-11-06, 04:58 PM
Once in program mode: Enter #00; this will make it read back the current installer code, 1 digit at a time.

Enter #01 this will make it read back the current master code

Exit programming with *99