Honeywell L5210 Frequently Asked Questions

Why Does My Panel Show CO or Fire Trouble on an FF345 Zone?
FF345 units with a date code of 09/2020 or later are known to cause Fire or CO Sensor Trouble on Honeywell Systems after a Fire or CO Alarm is cleared. Learn about this issue.
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How Do I Change the Master Code On a Honeywell LYNX Touch?
The Master Code on a LYNX Touch is used for arming/disarming and accessing the Master Tools Menu. We advise changing the security code. Learn to change the LYNX Touch Master Code.
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What are the Best Ways to Prevent False Alarms?
A single mistake can result in a false alarm and a costly fine. You can prevent false alarms by following a set of practices. Learn how to prevent false security system alarms.
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How Do I Get Into Honeywell L5200 or L5210 Programming If I'm Locked Out?
If you click the "Program" button and nothing happens, then you are locked out of programming. You must use the backdoor method. Learn how to backdoor into an L5200 or L5210.
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How Do I Batch Enroll Users via Total Connect 2.0?
Total Connect 2.0 has a special feature that allows you to add multiple new users at once by using an Excel document. Learn how to batch enroll users in Total Connect 2.0.
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How Do I Change the Font Type and Size for TC2 On My Android Device?
If you change the font type and size for your Android device, then the change will also be applied within Total Connect 2.0. Learn how to change the font for TC2.
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Does TC2 Support Voice Commands?
Android users can control TC2 using Google voice commands from within the TC2 App. But iOS users do not have this option. Learn all about TC2 spoken voice commands.
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What Do I Do If My Honeywell LYNX Touch Is Having Software Issues?
If you encounter software issues on a LYNX Touch, try rebooting the panel or updating the firmware. Learn how to troubleshoot software issues on a Honeywell LYNX Touch.
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Is the Honeywell L5210 Compatible w/ Alexa?
​By setting up the Total Connect 2.0 Alexa Skill, you can control your L5210 using Amazon Alexa. This will require monitoring service. Learn about the TC2-Alexa integration.
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How Do I Reset the Master Code for a LYNX Touch System?
If you can get into programming on a LYNX Touch System, then you can reset the Master Code back to its default of 1234. Learn how to reset the Master Code for a LYNX Touch System.
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