White Rodgers 1F92-71 - Manual (Page 30)

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want to stop programming at this point,
press RUN
PRGM
to start the normal program
function. See PROGRAMMING YOUR
THERMOSTAT.
4. What happens if the electricity goes off
or is manually shut off?
If you have not installed a 9 volt alkaline
battery, the display will go blank and the
program will be lost in approximately one
minute. When electricity is restored, the
thermostat will maintain a heating tem-
perature of 64
°
F and a cooling tempera-
ture of 82
°
F until you reenter your pro-
gram. Setpoint temperature will not be
displayed.
If a fresh 9 volt Energizer ® alkaline battery
is installed, the program will be maintained
for about one week with no 24 VAC power
present to the thermostat. See OPERAT-
ING YOUR THERMOSTAT.
5. Why can’t I program the thermostat in
the AUTO mode?
The thermostat can only be programmed
in the HEAT and COOL modes. See PRO-
GRAMMING YOUR THERMOSTAT.
6. What can cause the thermostat display
to freeze or go blank?
A completely blank display may indicate
that power has been lost to the thermostat
and the backup battery is also dead. How-
ever, if there is power to the thermostat
and the display is blank or frozen, static
discharge is probably the cause.