T2000 Battery Replacement:

Ensure the batteries are installed following the specified polarity markings on the thermostat.

  1. Open the back panel by pulling straight off the wall.
  2. Insert four new AA batteries.
  3. Re-install on the wall

 

T3000 Battery Replacement:

Verify the batteries are installed following the specified polarity markings on the thermostat.

  1. Remove the thermostat from the back plate by pulling the thermostat straight out and off the wall.
  2. Take out the existing batteries.
  3. Insert the new batteries following the specified polarity markings on the thermostat.
  4. Reinstall on the wall