This article explains how to change the master code for Ademco, Honeywell, and First Alert Alarm Security System.
This process is straightforward, and you can get it done in less than 5 minutes.
How to change the master code
To change the master code, you need to use the keypad on your alarm system.
Here's the step-by-step.
And it's done. Your master code is changed, and now you can use it.
Test the new master code
It's important to test your new master code to make sure it's working fine.
Follow these steps to test your new code.
Follow these steps to test your new code.
If you forgot your current master code
Just in case you don't remember your master code, here's the way to test it.
Play the file below to hear the confirmation beep I'm talking about.
That's the way to confirm if your code is correct.
If you don't hear the confirmation beep, your code is probably wrong.
You can wait for 2 seconds and try this process again.
Sometimes we can't really remember the code. If that happens to you, follow my other article's instructions on How to reset ADT alarm without code.
For more information visit the ADT website.