An offline or malfunction indicates the sensor(s) are unable to communicate with the panel. Steps on how to identify and resolve this can be found here:
If every single sensor in programming is going into malfunction at once, power cycle the panel and test for resolution.
To do so safely:
- Disarm the system
- Navigate to Settings > Advanced Settings > Power Down
- Unplug the power supply from the wall outlet
- Open the panel and disconnect the internal battery.
- Leave the whole panel powered down for 10 minutes.
- Power up battery first the power supply Hold down the power button for 3-5 seconds to reboot.