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 thermostat. See OPERATING YOUR THERMOSTAT.
9.The display is flashing BATTERY. 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 OPER-
ATING 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 minutes for the compressor lockout to expire. If the system is still not running, read the caution- ary statement at the right. Then, if condi-
tions permit, use the 
or 
buttons to move the temperature above or below the setpoint temperature. See OPERATING YOUR THERMOSTAT.
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