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

    First remove the Room Thermostat from the backplate on the wall, by loosening the 2 screws on the underside of the thermostat backplate. These screws should not be completely removed only lessened.

    If the Room Thermostat has been placed on the original house thermostat back plate, then make sure that you power down (isolate) the heating system so that any exposed wiring behind the thermostat is safe before you remove it to change the batteries.

    Swing the thermostat up to remove it from the hinge at the top.


  • Remove the 2 x AAA batteries, (note the orientation of the batteries, both have the positive at the top).

    Wait 30 seconds before putting in the new batteries.

  • Put in the 2 new AAA batteries, (note the orientation of the batteries, both have the positive at the top).

    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 the device putting the number 1 dip switch (left side) into the UP (on) position. Wait 5 seconds and put it back down to its original position.

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

     

  • Replace the thermostat on the wall, starting by locating the thermostat onto the backplate at the top, before tightening the two screws.