8.The display is flashing BATTERY. What does this mean?
The "AA" batteries installed in the thermo- stat are low and should be replaced with fresh "AA" Energizer® alkaline batteries. See
OPERATING YOUR THERMOSTAT.
9.The display shows a continuous (non- flashing) BATTERY. What does this mean?
The thermostat is not being supplied with 24vAC power. The thermostat is operating on battery power alone. See OPERATING YOUR THERMOSTAT.
10.Why won’t the compressor 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 cool. Wait about 5 minutes for the compressor lockout to expire. If the system is still not running, read the cautionary state- ment below. Then, if conditions permit,
use the 
button to move the tempera- ture below the setpoint temperature. See
OPERATING YOUR THERMOSTAT.
!CAUTION
If the outside temperature is below 50°F,
DO NOT use the 
button to move the temperature below the setpoint tempera- ture. Property damage may result due to compressor slugging.
11.Why doesn’t the temperature change at the time I programmed?
There may be a number of causes for this situation. The following are primary rea-
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