• The batteries are flat in the Genius Room Thermostat and the Thermostat will have stopped working altogether.

    First, remove the Room Thermostat from its backplate using a flat bladed screwdriver and placing this in the cutout in the underside of the device, before levering the front away.

  • Remove the 3 x AA batteries, (note the orientation of the batteries, which is also indicated on to the side of the battery compartment).

    Wait 30 seconds before putting in the new batteries.

  • Put in the 3 x new AA batteries.

    Rechargeable batteries should not be used as their voltage is too low (1.2v not 1.5v).

  • Select the Room Thermostat with the flat battery

    The old number for the Room Thermostat may be on the side of the device.

  • Your system will take around a day to update with your devices values and for any errors to clear.

  • Wake up the device by pressing the middle button once.

  • The Genius Hub will check the battery level to ensure that the new battery level has been reported by the device.

  • Fit the Room Thermostat onto the backplate by aligning it at the top and rotating it down to meet at the bottom.