Installed a home ring system 3 months ago. Working fine so far except getting random false motion alarms from one sensor at night in away mode. No pattern to the alarms that I can see. Sensor is mounted 7 feet above floor and facing away from heat vents and windows. No pets and sensor set for lowest sensitivity. Have already relocated the sensor once with no improvement. Several other motion sensors in the house working fine. No ideas I’ve found on line have worked. Any helpful suggestions out there ??