Understanding Smoke + CO Issues

It is important to test and maintain all system sensors regularly. A low battery or abnormal damage to the sensor can cause irregular activity, including loss of supervision. Loss of supervision is an automatic diagnostic the system uses to verify that sensors are wirelessly communicating properly. Other contributing factors that can cause loss of supervision are distance to the panel, large mirrors, large fish tanks, large metal objects, or concrete/mortar barriers and objects.

Step by Step Instructions

When your sensors are experiencing a LOSS of SUPERVISION we need to identify if it is being caused by:

1. The distance of the sensor from the panel and/or interference
2. A low battery or
3. A bad sensor

DO NOT RESET THE PANEL

To test if your sensor is too far from the panel:

• Change the location of the panel to be closer to the potentially malfunctioning sensor (within 10-20 feet). This is a temporary troubleshooting step. You do not have to keep your panel next to the sensor.
• Test the sensor to reconnect it to the panel.
• Wait 48 hours to see if the issue persists.

Deleting the sensor and re-adding it back:

• If your issues persist, delete the sensor from the system.
• Re-add it back into the system.
• If the sensor will not clear or continue the Loss of Supervision, follow the next steps.

If deleting and adding back the sensor does not fix your issue:

• Try replacing the batteries.
• Test the sensor to reconnect it to the panel.
• Wait 48 hours to see if the issue persists.