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
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Wake up the device by pressing the middle button once. |
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Fit the Room Thermostat onto the backplate by aligning it at the top and rotating it down to meet at the bottom. |