Frequently Asked Questions

What Do the Lights Mean on a Honeywell GSMV4G?
On a GSMV4G, the green light indicates current status, the yellow light indicates message transmission, and the red light indicates communication fault. Learn about the GSMV4G.
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Can I Hook Up a Wireless Alarm System to a Wired System?
It is not possible to control a wired alarm system using a wireless alarm system. You should get a keypad if you want to control a wired alarm system. Learn about alarm systems.
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Are Honeywell LYNX & VISTAs Compatible with 5800 Sensors?
Honeywell Panels usually accept signals at the 345 MHz frequency. This is the same frequency used by 5800 Sensors, which lets them work with these systems. Learn about sensors.
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Is the Honeywell T6 PRO Thermostat Compatible w/ Any Z-Wave Controller?
The Z-Wave version of the Honeywell T6 PRO Thermostat will work with virtually any Z-Wave controller. It does not have to be a Honeywell System. Learn about the T6 Pro Thermostat.
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How Do I Change the Installer Code Using a Tuxedo Touch Keypad?
The Honeywell Tuxedo Touch Keypad has a Console Mode that you can use to change the Installer Code. Learn how to change the Installer Code using a Tuxedo Touch Keypad.
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Will My Honeywell L5100 Work w/ SmartThings?
If you pair your L5100 as a secondary controller to your SmartThings Hub, all Z-Wave devices paired with SmartThings will be pushed to the L5100. Learn about SmartThings.
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What Is the Difference Between Arm Stay and Arm Instant?
When you set your system to Arm Instant, it will ignore any Entry Delay Periods. This means that an Entry/Exit Zone will cause an immediate alarm. Learn about system arming modes.
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Can I Figure Out the Master Code on a VISTA 21iP?
It is possible to change the Master Code on a VISTA 21iP using the Installer Code. If you lose both codes, then you must use the backdoor method. Learn about the VISTA 21iP.
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Can I Figure Out the Master Code on a VISTA 15P?
The best way to change the Master Code on a 15P is to use the Installer Code to change it. You can use the backdoor method if you don't know that code. Learn about the VISTA 15P.
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Can I Figure Out the Master Code on a VISTA 20P?
If you know your system's Installer Code, you can use it to change the Master Code. Or you can backdoor the system to reset the Installer Code. Learn about the VISTA 20P.
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