How Do I Reset the Installer Code Back to Default on an Interlogix Simon XTi or XTi-5?

You can set the Installer Code back to default on an Interlogix Simon XTi or XTi-5 by entering into Access Codes Programming using the existing Installer Code or Dealer Code, and then changing the IC back to its 4321 default. Also, factory defaulting the system will revert the IC back to 4321*.

On an Interlogix Simon XTi, Interlogix Simon XTI-5, or Interlogix Simon XTi-5i, the Installer Code is used for entering into System Programming. You can also accomplish this using the system's Master Code and its Dealer Code. However, if you use the Master Code to get into programming, then you will find that the available options are extremely limited. For instance, using the Master Code will not allow you to make changes to system zones in Sensor Programming so that you can add, edit, and delete sensors. You need the Installer Code or the Dealer Code for that. As the owner of your security system, you should always know your system's Installer Code and its Dealer Code. Losing both of these codes and being unable to enter programming is commonly referred to as being "locked out" of programming. In that situation, you would have no choice but to factory default the system to revert the Installer Code back its default of 4321. When doing this, the Dealer Code will also revert to that same 4321 default, *provided that the option for Phone Lock located in System Programming is set to OFF, which is its default setting.

One thing to remember for any Interlogix Simon Series Panel is that the system's Installer Code and Dealer Code both share the same default of 4321. What's interesting is that the only way to have these codes at the same value is to keep them at the 4321 default. If you change either of these codes away from 4321, then you will not be able to change that code back to 4321, unless you first change the other code that is still set to 4321 to something else. The reason for this is because the system does not allow you to manually set two (2) or more separate codes to have identical entries. The only way that you can get both the Installer Code and the Dealer Code back to their 4321 default settings is to factory default the system, and again, what happens to these codes when you default the system will depend on the Phone Lock setting inside panel programming.

Alarm Grid recommends keeping both the Installer Code and the Dealer Code on your Interlogix Security System at the 4321 default setting and not changing these codes. The reason for this is because it will be more difficult to get back into System Programming if you lose these codes. In the event that you forget the 4321 code, you can always look it up later online as the default Installer Code and default Dealer Code for an Interlogix Alarm System. It is also important to note that keeping these codes at their default settings does not represent a security risk. This is because you cannot disarm an Interlogix System using its Installer Code or Dealer Code. Even if a savvy intruder knows these default codes and tries to use them to disarm the system, it will not help them in any way. But while we don't advise changing the Installer Code or the Dealer Code, we strongly recommend changing the system's Master Code away from its default of 1234. The Master Code is the primary arming and disarming code, and keeping it at its default represents a serious security risk.

You can change the Installer Code on an Interlogix Simon XTi, XTi-5, or XTi-5i in one of two (2) ways. The first way is to manually change the code back to its 4321 default. In order to do this, you must know the current Installer Code or the current Dealer Code for the system. Additionally, no other code on the system can be set to 4321. This includes the Dealer Code, which uses that same 4321 default. If another code is set as 4321, then you must change it first before you can then set the Installer Code as 4321. The process for manually changing the code will be covered step by step at the end of this FAQ you are reading. The other way to get the Installer Code back to its 4321 is to factory default the system. However, factory defaulting the system has many additional implications. Most notably, it will wipe out all of the programmed system zones, and you will need to reprogram the entire system from the beginning. If you do decide to factory default your Simon XTi, Simon XTi-5, or Simon XTi-5i, follow the process outlined in this FAQ.

In order to manually change the Installer Code for a Simon XTi, XTi-5, or XTi-5i back to its default, follow these steps:

1. Enter Access Codes. Begin from the main screen of your system. Click the small gear icon in the bottom-right corner of the screen. Press the down arrow on the right-hand side of the screen until you see the option for Programming. Press the Enter button next to Programming. When prompted for an Access Code enter either the system's current Installer Code or its current Dealer Code. If you enter the Master Code here, you will run into issues in the next step. Press the OK button after you have entered the Installer Code or the Dealer Code. Then on the following screen, choose Access Codes. You will have entered into the Access Codes Menu.

2. Change the Installer Code. Provided that you used the Installer Code or the Dealer Code to enter into programming, you should see the field for Installer Code. If you used the Master Code earlier in Step 1, then you will not be able to change the Installer Code. Locate the Installer Code setting, and click the white box (entry field) next to it. Enter in the default Installer Code of 4321, and then click Save in the upper-right corner. You will only be able to make this change if no other code for the system is set to 4321. This includes the Dealer Code, which uses the same 4321 default. Once you press the Save button with a valid entry, the code will save to the system.

3. Return home. Press the Close button in the upper-right corner repeatedly until you are taken back to the main screen. You can test the newly changed Installer Code by re-entering programming using this code and verifying that you are able to reach the Installer Code setting to change it.