White Rodgers 1F90W-71 Operation Manual page 30

programming, press
to the point where you stopped program-
ming. Then you may continue to program
the thermostat normally. If you want to stop
programming at this point, press
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 3 "AA" alkaline
batteries, the display will go blank and the
program will be lost in approximately one
minute. When electricity is restored, the
clock will reset itself to 12:00 PM (noon) and
the thermostat will maintain a heating tem-
perature of 64 F and a cooling temperature
of 82 F until you reenter your program.
Setpoint temperature will not be displayed.
30
VIEW
until you return
PRGM
RUN
to
PRGM
If fresh "AA" Energizer
are installed, the program will be main-
tained for about one year with no 24vAC
power present to the thermostat. See OP-
ERATING 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 dis-
charge is probably the cause.
®
alkaline batteries