Backlighting (INDIGLO® | 35 |
Your thermostat has an electroluminescent lamp that backlights the display for easy viewing in the dark.
When any key is pressed or the System Switch is changed, the display is illuminated.
The display will remain illuminated for 5 seconds after the last key is pressed. This allows the light to stay on if you need to operate several keys.
NOTE: If the thermostat is in Low Battery warning condition, the backlight will not operate. Replace with 2 new alkaline batteries to restore the Backlight function.