Frequently Asked Questions
What Is the Best Way to Monitor a Honeywell L5210?
If you have an L5210, then the best option is cellular monitoring. This is the most reliable comm path available for the system. Find out your options for monitoring an L5210.
Can I Make My Honeywell VISTA Security System Wireless?
A Honeywell VISTA can support wireless sensors if you add a compatible wireless receiver. You can then use the system without wired sensors. Learn how to make your panel wireless.
How Often Should I Replace a Honeywell Carbon Monoxide Detector?
Most Honeywell CO Detectors have a 10-year lifespan. But it is important to check the instructions to be sure. Find out how often a carbon monoxide sensor must be replaced.
What Does "103 check lngrng radio" Mean On My ADT System?
If you see a Check 103 Error on your ADT Security System, then it means that there is a problem with the system's communicator. Learn about the Check 103 Error Message.
How Do I Clear a Check 950 Comm Trouble On a Honeywell Lyric Controller?
A Lyric System showing 950 Comm Trouble is either not properly registered, or it has experienced an extended WIFI and/or cellular outage. Learn about Check 950 Comm Trouble.
How Do I Check If the Tamper Switch On My Lyric Controller Is Bad?
If the tamper switch on a Lyric Panel isn't functional, then the system might display a Check 900 Cover Tamper Trouble. Learn how to check if your Lyric has a bad tamper switch.
How Do I Clear a Check 990 RF Jam On a Honeywell Lyric Controller?
The reason a Check 990 RF Jam trouble will show up on a Lyric is because continuous 2.4 GHz signals are blocking signals from SiX Sensors. Learn about Check 990 RF Jam on a Lyric.
How Do I Clear a Check 988 RF Jam On a Honeywell Lyric Controller?
The Lyric will show a 988 RF Jam trouble condition if the panel is constantly being sent 345 MHz signals to block Honeywell 5800 Sensors. Learn about 988 RF Jam on a Lyric.
How Do I Clear a Check 901 Expansion Module Tamper On a Honeywell Lyric Controller?
The Lyric has a side slot where you insert a cellular module. If this side slot cover is removed, then a Check 901 Trouble will appear. Learn how to clear a Check 901 Trouble.
How Do I Clear a Check 900 Cover Tamper On a Honeywell Lyric Controller?
If the Lyric Controller back cover is loose or removed, then the system will show a Check 900 Cover Tamper. Learn how to clear a Check 900 Cover Tamper on a Lyric Alarm System.
If you have an L5210, then the best option is cellular monitoring. This is the most reliable comm path available for the system. Find out your options for monitoring an L5210.
Added:
Can I Make My Honeywell VISTA Security System Wireless?
A Honeywell VISTA can support wireless sensors if you add a compatible wireless receiver. You can then use the system without wired sensors. Learn how to make your panel wireless.
Added:
How Often Should I Replace a Honeywell Carbon Monoxide Detector?
Most Honeywell CO Detectors have a 10-year lifespan. But it is important to check the instructions to be sure. Find out how often a carbon monoxide sensor must be replaced.
Added:
What Does "103 check lngrng radio" Mean On My ADT System?
If you see a Check 103 Error on your ADT Security System, then it means that there is a problem with the system's communicator. Learn about the Check 103 Error Message.
Added:
How Do I Clear a Check 950 Comm Trouble On a Honeywell Lyric Controller?
A Lyric System showing 950 Comm Trouble is either not properly registered, or it has experienced an extended WIFI and/or cellular outage. Learn about Check 950 Comm Trouble.
Added:
How Do I Check If the Tamper Switch On My Lyric Controller Is Bad?
If the tamper switch on a Lyric Panel isn't functional, then the system might display a Check 900 Cover Tamper Trouble. Learn how to check if your Lyric has a bad tamper switch.
Added:
How Do I Clear a Check 990 RF Jam On a Honeywell Lyric Controller?
The reason a Check 990 RF Jam trouble will show up on a Lyric is because continuous 2.4 GHz signals are blocking signals from SiX Sensors. Learn about Check 990 RF Jam on a Lyric.
Added:
How Do I Clear a Check 988 RF Jam On a Honeywell Lyric Controller?
The Lyric will show a 988 RF Jam trouble condition if the panel is constantly being sent 345 MHz signals to block Honeywell 5800 Sensors. Learn about 988 RF Jam on a Lyric.
Added:
How Do I Clear a Check 901 Expansion Module Tamper On a Honeywell Lyric Controller?
The Lyric has a side slot where you insert a cellular module. If this side slot cover is removed, then a Check 901 Trouble will appear. Learn how to clear a Check 901 Trouble.
Added:
How Do I Clear a Check 900 Cover Tamper On a Honeywell Lyric Controller?
If the Lyric Controller back cover is loose or removed, then the system will show a Check 900 Cover Tamper. Learn how to clear a Check 900 Cover Tamper on a Lyric Alarm System.
Added: