You may receive an AC Power Failure notification on your panel or receive a phone call from our monitoring center letting you know of an AC power loss. This means that your security system has lost its main power source and is now operating on the backup battery. If you are currently experiencing a power outage, the system will automatically reset when the power is returned.
If you are not having a power outage, check that the system is receiving power at the outlet where it is plugged in. If the outlet has power but the system is still in AC power loss, please contact Guardian for assistance at 1.800.PROTECT (1.800.776.8328). Once the power is restored to the system, the backup battery will be recharged.