Of all the problems that require burglar alarm system troubleshooting a simple open zone is the most common.
Security system door sensor not working.
There are two ways to detect a garage door opening.
Learn what to do when you have a problem with a door window sensor connected to your xfinity home system.
This page deals with a typical open zone problem a door or window that is displaying on the system keypads as faulted all of the time and prevents normal arming of the system.
This usually affects perimeter alarm zones which are the exterior doors and windows that lead into the house.
A door or window sensor is typically a two piece magnetic contact sensor.
When the system is armed and a door or window is opened the two magnetic sensors are separated from each other thereby tripping the alarm.
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There are some issues that only affect wireless door sensors.
However hard wired door sensors can also experience trouble.
Though not as common as regular door sensors garage door sensors can bring a lot to a home security system.
With a standard door sensor or with a pitch sensor.
A non working door sensor can be the result of many different factors.