Motion Detector / Sensor Troubleshooting
How They Work
Your passive infrared motion sensor detects movement across the path of the device protection area. It measures the contrast of infrared energy (heat energy) within the room to detect a moving human. The device activates based on 3 paths being triggered for spot detection which means it does not cover every inch of the floor.
Test Your Motion Detector
To test your motion detector:
- Place your system on test.
- Arm your system to Away.
- Before the exit delay expires, open and close an exit door.
- Wait five minutes.
- Confirm that the system panel's LED light turns on or that the keypad displays the zone as faulted.
- Remove your system from test.
Troubleshooting Your Motion Detector
| Sensor Behavior | Possible Causes & Troubleshooting Tips |
| Low Battery | If you have determined that your motion sensor has a low battery and you are ready to replace it, you can get video and step-by-step instructions on the Motion Detector Battery Replacement page. |
| Sending False Signals | A motion sensor may send a false alarm signal for multiple reasons. These include things like balloons, stray air drafts, direct sunlight, large insects, rapid temperature changes (caused by fireplaces or heating systems), small animals (such as mice, rats, birds, cats, etc.) or faulty equipment. |
| Showing Faulted State | Hardwired:
|
| Not Activating | Motion sensors detect movement across a path within a certain time period (milliseconds). If a person is walking directly at the device, it may not pick up the movement until the person is directly underneath the device. Waving hands may not be sufficient to trigger at least 3 fingers. |
| Displaying Trouble Condition | Hardwired:
|
Related Topics
Testing Your System
Here are instructions for placing your system in Test mode, and for removing it from Test mode once the test is complete.
Motion Detector Battery Replacement
Step-by-step instructions on how to change the battery in your motion sensor.
Find the Right Sensor Battery
Identify which battery goes with your peripheral sensor.
