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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. These features will not work on
battery power alone. 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 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
cautionary statement below. If conditions
permit, use or to move the
temperature above or below the setpoint
temperature. See OPERATING YOUR
THERMOSTAT.
If the outside temperature is below 50°F,
DO NOT use to move the tempera-
ture below the setpoint temperature.
Property damage may result due to com-
pressor operation in cold weather.
CAUTION
!