69-1631—1
22
FREQUENTLY ASKED QUESTIONS
b. Press
and
simultaneously.
A blank program schedule is displayed and the program
is canceled (Fig. 31).
Fig. 31.
Change a program permanently
Follow steps for programming heating schedule or programming
cooling schedule.
If...
Then...
Display does not come on
•
Make sure the batteries are fresh and installed correctly.
•
Set System switch to Off. Remove batteries and insert backward for five to
ten seconds to reset thermostat. Replace batteries correctly; display should
come on.
Temperature display does not go
lower than 45°F (7°C) or higher than
88°F (31°C) during programming.
•
Temperature limit setting is reached; range is 45°F to 88°F (7°C to 31°C).
Display shows flashing “bAt Lo.”
•
The batteries are low; replace them as soon as possible.
•
If “bAt Lo” continues to display after replacing batteries, set System switch
to Off and insert batteries backward for five to ten seconds. Replace
batteries correctly; display should come on.
Temperature change occurs at wrong
times
•
Check program times for period in question. Be sure
AM
and
PM
indications are correct. Make sure current day and time are correct.
Reprogram if necessary.