White Rodgers 1F90-71 Thermostat User Manual


 
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3. Press
SET
CLOCK
once. The display window will
show the hour only.
EXAMPLE:
4. Press and hold either
TIME
FWD
or
TIME
BACK
until you
reach the correct hour and AM/PM designa-
tion (AM begins at midnight; PM begins at
noon).
5. Press
SET
DAY
once. The display will show the
day of the week as an abbreviation (MO for
Monday, TU for Tuesday, etc.).
6. Press and hold either
TIME
FWD
or
TIME
BACK
until you
reach the current day of the week.
7. Press
RUN
PRGM
once. The display will show the
correct time and room temperature alter-
nately.
Enter Heating Program
During programming, if you don’t press any
buttons for 5 minutes, the thermostat will enter
the HOLD mode and will maintain a constant
temperature. The display will revert to the alter-
nating time/temperature display. To resume pro-
gramming after this happens, press
VIEW
PRGM
until
you are at the point where you stopped program-
ming. Then you may continue to enter your
programs normally. If you want to stop program-
ming at any time, simply press
RUN
PRGM
to resume
program operation.