White Rodgers 1F97-51 - Manual (Page 35)

35
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 reasons.
• The EMR function is operating. The EMR
function will automatically bring on the
system automatically to bring the tem-
perature to the selected level by the begin-
ning of the next program period. See
OPERATING YOUR THERMOSTAT.
• You have programmed the incorrect day
or time. Check your programming (be
sure that the times you programmed are
correct AM or PM times). See PRO-
GRAMMING YOUR THERMOSTAT.
• The thermostat is in the HOLD mode.
Press RUN
PRGM
to start program operation. See
OPERATING YOUR THERMOSTAT.
• The compressor lockout feature is oper-
ating; wait about 5 minutes for system to
begin running. See OPERATING YOUR
THERMOSTAT.
CAUTION !