The panel displays a loss of supervision message when it doesn’t receive its regular check-in signal from a sensor. The check-in lets the panel know the sensor is still there and functioning properly.
Start by checking the sensor’s battery level. The Bell Smart Home app will display a low-battery indicator if the levels are low.
Loss of supervision can also be caused by the following:
- Poor signal due to the sensor’s distance from the panel
- The presence of metal nearby (i.e., the sensor is mounted to metal surface)
- A defective sensor
If the battery levels of the sensor are fine and you still get the loss of supervision message, please call 1 800 267-2001 for assistance.