8.Why doesn’t the display light come on when I press a button? Why don’t I hear a beep when I press a button?
The display light and audio prompting (beep) only work when the thermostat is on the wall and 24 VAC power is present to the ther- mostat. These features will not work on battery power alone. See OPERATING YOUR THERMOSTAT.
9.The display is flashing BAT. What does this mean?
The 9 volt battery installed in the thermostat is low and should be replaced with a fresh 9 volt Energizer® alkaline battery. See OP-
ERATING YOUR THERMOSTAT.
10.Why won’t the system turn on, even though the thermostat display is func- tioning normally?
Either the compressor lockout feature is in operation or the thermostat is not currently calling for heat or cool. Wait about 5 min- utes for the compressor lockout to expire. If the system is still not running, read the following cautionary statement on the next page. Then, if conditions permit,
use the 
or 
buttons to move the temperature above or below the setpoint temperature. See OPERATING YOUR THERMOSTAT.
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