A glass break sensor does not have a factory reset in the way a camera does, and what owners usually mean is that they want to clear it from the control panel and enrol it again, or clear a trouble message that will not go away. The sensor is a small wireless device that talks to the panel, and its state, whether enrolled, in trouble or low on battery, is held in the panel.
The checks in more detail
To re-enrol it, remove the old entry on the panel using the sensor or zone programming menu, which for most panels requires the installer or master code, then put the panel in enrolment mode and trigger the sensor by opening the cover or removing and reinserting the battery, so that the sensor sends its signal. The panel confirms with a beep or a message. SafeWise's guide notes that the steps vary with the panel model, and that you can identify the panel from your online account or the panel's label before you look up the key combination.
A factory reset of the whole panel, which some owners try, erases all sensors and settings, and should be left to the installer, because it can leave the home unprotected until every sensor is enrolled again. If the sensor is in trouble, try the simple steps first: check the battery, make sure the cover is closed so that the tamper switch is not open, and check that the sensor is within range of the panel and that nothing metal blocks its signal.
Glass break sensors have a limited listening range, so a sensor in the wrong room does not cover the window you care about, and a sensor placed more than a few meters away or behind heavy curtains may miss the sound. Reposition it as the manual says, usually on the wall or ceiling facing the glass within the stated range. If a sensor is being sold with the house or removed, delete it from the panel. Do not try to defeat or bypass the sensor if it is alarming; call the monitoring company.
Differential
Likely causes of “ADT Glass Break Sensor will not reset or needs to be reset safely”, and how to tell them apart
- 1
A sensor in trouble
What separates it The panel shows a trouble message
How to confirm Check the battery, cover and range
- 2
A sensor to be re-enrolled
What separates it It is not recognized
How to confirm Delete it from the panel and enrol it again
- 3
An open tamper switch
What separates it The cover is not closed
How to confirm Close the cover firmly
- 4
A sensor out of range
What separates it It drops out
How to confirm Move it nearer the panel or add a repeater
- 5
Removal or sale
What separates it The sensor must be cleared
How to confirm Delete it from the panel
Before you touch a setting
Record this first — changing settings destroys the evidence
- The panel model
- The trouble message
- The sensor's battery and cover
- Its distance from the panel
Try in this order
0 of 6 completedIdentify the panel model
ReversibleIn your account or on the panel label.
Check the battery and cover
ReversibleThe tamper switch must be closed.
Delete the old entry
ReversibleIn zone programming.
Enrol the sensor
ReversibleTrigger it while the panel is in enrolment mode.
Check its range
ReversibleAnd placement.
Ask the installer
ReversibleFor a full reset.
Model-specific
What is true of this model and not of its siblings
- The panel holds the state
- Enrolment is done there.
- Range
- Glass break sensors have a limited listening range.
Stop boundary
When this stops being a self-service repair
- !Leave a full panel reset to the installer
- !If the sensor will not enrol, ask them to check it
- !If the sensor alarms falsely, do not bypass it without advice
Evidence ledger
Sources behind this answer
Exact questions
Common questions
Does a glass break sensor have a reset button?+
Usually it is cleared and enrolled through the panel.
Why does it show trouble?+
A battery, cover or range problem.
Should I reset the panel?+
Leave it to the installer.
How do I enrol a sensor?+
Put the panel in enrolment mode and trigger the sensor.