Owner`s manual

17
ADVANCED OPTIONS
Turning on the continuous backlighting
The thermostat display lights up for a few seconds after you press any button.
This is backlighting. It will go dark after a few seconds.
If the thermostat is powered by electricity, it is possible to have a constant low
level amount of backlighting until you press any button, which increases the
lighting temporarily. Here’s how to turn on the constant backlight when your
thermostat is powered by electricity.
1. Press and hold the mode button for about three
seconds. The display will show U1 and the letter F in the
center.
2. Press the mode button twice. The display will show U2
and Off.
3. Press the up or down button on the right to change it
from Off to On.
4. Press the fan button on the left to exit this screen.