Battery Replacement

• Battery Replacement
  • Indoor Sensor
  • Outdoor Sensor

Indoor Sensor

Replace batteries in your indoor sensor when a warning appears on the thermostat screen, about 60 days before batteries are depleted.

When the sensor status light begins flashing red, battery power is critically low and will be depleted within 2–3 weeks. During normal operation, the status light remains off.

To replace the batteries:

• Remove the sensor from wall plate.

• Install 2 fresh AAA alkaline batteries. If the status light flashes green, batteries are good; if it flashes red, you must use fresh batteries.

• Attach sensor to wall plate.

The sensor will restore communication with the thermostat a few seconds after new batteries are installed.

Outdoor Sensor

Replace the batteries in your outdoor sensor when a warning appears on the thermostat screen, typically about two months before the batteries are depleted. The outdoor sensor requires 2 fresh AA lithium batteries.

After installing new batteries, the outdoor sensor will restore communication with the wireless network within a few seconds.