Gen 2 open door warning still displays when the door or window has been closed

There could be several reasons why your the Gen 2 is showing an open door/window warning despite the door/window being closed.

Here are some potential causes and troubleshooting steps:

Sensor Alignment: Ensure that the sensor and the magnet (usually mounted on the door and the frame) are properly aligned. If they are misaligned, the sensor might not detect that the door is closed.
Interference: Other wireless devices or electronic equipment near the sensor or alarm panel might be causing interference, disrupting the signal between the sensor and the panel.
Range and Obstructions: Ensure the sensor is within the effective range of the alarm panel and that there are no obstructions blocking the signal. Thick walls or large metal objects can interfere with RF signals. (this is the most common issue)
Sensor Reset and re-adding: Try resetting the sensor by removing the sensor from the alarm panel and then re-adding it can sometimes resolve minor glitches.
Test the Sensor:

Disarm the alarm.
Ensure that the backup battery switch on the back of the alarm panel is turned 'On'.
Unplug the USB-C connection from the back of the panel.
Walk over with the Gen 2 alarm panel in your hand to the sensor that is not responding correctly when the door/window is closed, and the open door/window warning still displays for that sensor.
When you are beside the sensor, holding the Gen 2 alarm panel, first ensure that the door/window is closed. Now, open the door/window to check if the alarm panel chimes and shows the open door warning.
Now close the door/window to check if the open door/window warning no longer appears on the alarm panel display.

If the door/window sensor responds correctly when you are close to the sensor with the alarm panel in your hand, the issue is that the sensor is too far away or there are obstacles (walls, metal objects, etc.) that could interfere with the signal, causing the RF (radio frequency) communication issues.

If it is a PIR motion sensor that is also having RF communication issues with the alarm panel, you can also perform the same test. However, in this case, you would arm the alarm panel and, with the alarm panel in hand and you are near to the sensor, set off the motion sensor to see if the motion sensor triggers the alarm.

To resolve this issue: We would recommend a signal repeater to boost the RF signals. A signal repeater amplifies the signal from the sensors to the Gen 2 alarm panel, ensuring reliable communication. Click here for more information on the OSI Signal Repeater.